Unconditioned Dharmas: The Destination of the Hundred Dharmas

I. The Problem

The five-category structure of the Hundred Dharmas Treatise—mind dharmas, mental factors, form dharmas, factors dissociated from mind, and unconditioned dharmas—is not a random classification but a practice roadmap from the conditioned to the unconditioned. The previous twelve papers have traversed the first four stations: mind dharmas as the transforming structure of consciousness (S3-P02 through P06), mental factors as the psychological content of consciousness's activity (S3-P07 through P10), form dharmas as the material aspect projected by consciousness (S3-P11), and factors dissociated from mind as the conceptually designated aspect of consciousness's activity (S3-P12). From mind dharmas to dissociated factors, the ontological density of conditioned phenomena steadily decreases—mind dharmas possess the capacity for discernment (vijñapti), mental factors have functional correspondence with mind, form dharmas have resistance (sapratigha), and dissociated factors lack even resistance, being merely "positionally designated" (fen wei jia li 分位假立) concepts.

Now the Hundred Dharmas arrives at its fifth category: unconditioned dharmas.

"Unconditioned" (asaṃskṛta) does not mean "doing nothing"—it means "not fabricated": neither arising, nor abiding, nor changing, nor ceasing.¹ Conditioned dharmas arise and perish through the assembly and dissolution of conditions; unconditioned dharmas transcend arising and ceasing. If conditioned dharmas are waves, unconditioned dharmas are the nature of the water itself—the waves shift ceaselessly, but the wetness of water has never changed.

The Hundred Dharmas Treatise lists six unconditioned dharmas: space-like unconditioned (ākāśa-asaṃskṛta), analytical cessation (pratisaṃkhyā-nirodha), non-analytical cessation (apratisaṃkhyā-nirodha), the unconditioned of immovability (āniñjya), cessation of perception and feeling (saṃjñā-vedita-nirodha), and true thusness unconditioned (tathatā-asaṃskṛta).² These six are not six independent "things" but six aspects of the same true thusness recognized and described from different angles. The Cheng Weishi Lun's classification is crucial: space-like, analytical cessation, non-analytical cessation, and so on can all be subsumed under the three natures—as appearances produced by mind resembling space and so forth, they belong to the other-dependent nature; as objects falsely grasped as truly existent by ordinary beings, they belong to the thoroughly imagined nature; as designations provisionally established upon true thusness, they belong to the perfectly accomplished nature.³ In other words, the ultimate meaning of all six unconditioned dharmas converges on true thusness; the differences lie only in the context of their manifestation.

This raises the paper's central question: if the first ninety-four dharmas (conditioned phenomena) display the constructive nature of consciousness—how consciousness transforms into mind dharmas, activates mental factors, projects form dharmas, and designates concepts—then what do the six unconditioned dharmas of the fifth category display?

The answer: the real nature of consciousness.

The verse from Cheng Weishi Lun, fascicle 9: "The ultimate reality of all dharmas is none other than true thusness; ever abiding in its nature, it is the real nature of consciousness-only."⁴ This is the series' ultimate thesis: all dharmas are consciousness-only, and the nature of consciousness is true thusness. True thusness is not something separate from consciousness—it is the real nature of consciousness itself. The Hundred Dharmas begins with "all dharmas are without self" (S3-P01) and concludes with "the real nature of consciousness-only is none other than true thusness" (S3-P13)—this is not a journey from one shore to another, but the discovery that you have been home all along.

This paper will: first, establish the complete doctrinal foundation for the six unconditioned dharmas through canonical sources; second, analyze the ontological positioning and practice implications of each unconditioned dharma; third, unify the six unconditioned dharmas under the dual framework of the perfectly accomplished nature and the real nature of consciousness-only; fourth, complete the full arc of the five categories from mind dharmas to true thusness.

II. Canonical Foundations

A. Sūtra Sources

2.1 The Āgamas — The Original Definition of Unconditioned Dharmas

The concept of unconditioned dharmas can be traced to the Āgama period. The Saṃyukta Āgama distinguishes conditioned from unconditioned in four characters:

「如此二法，謂有為、無為。有為者若生、若住、若異、若滅；無為者不生、不住、不異、不滅。」⁵

"These two classes of dharmas are the conditioned and the unconditioned. The conditioned arises, abides, changes, and ceases; the unconditioned neither arises, nor abides, nor changes, nor ceases."

This is Buddhism's most fundamental definition of unconditioned dharmas: conditioned dharmas have four marks (arising, abiding, changing, ceasing); unconditioned dharmas have none. S3-P12 has already demonstrated that the four marks themselves are "positionally designated"—but even at the level of designation, the characteristic of conditioned dharmas is their cycling through the four marks, while that of unconditioned dharmas is their transcendence of them.

The Āgamas further define the substantive content of unconditioned dharmas through the permanent exhaustion of afflictions:

「云何無為法？謂貪欲永盡，瞋恚、愚癡永盡，一切煩惱永盡，是無為法。云何為無為道跡？謂八聖道分。」⁶

"What are unconditioned dharmas? The permanent exhaustion of craving, the permanent exhaustion of hatred and delusion, the permanent exhaustion of all afflictions—these are unconditioned dharmas. What is the path-trace of the unconditioned? The Noble Eightfold Path."

This passage is immensely significant. First, unconditioned dharmas are not an abstract philosophical concept but the concrete state of "permanent exhaustion of afflictions." Second, the path leading to unconditioned dharmas—the "path-trace of the unconditioned"—is the Noble Eightfold Path, a concrete practice path. From the Āgama perspective, unconditioned dharmas have always been the goal of practice, not a purely theoretical category.

The Āgama descriptions of nirvāṇa likewise point to the practice context of unconditioned dharmas:

「一切取離、愛盡、無欲、寂滅、涅槃。」⁷

"The relinquishing of all clinging, the exhaustion of craving, desirelessness, quiescence, nirvāṇa."

Nirvāṇa is the relinquishing of clinging, exhaustion of craving, desirelessness, quiescence—all states that become manifest through the practice-based elimination of afflictions. The Yogācāra concept of analytical cessation (pratisaṃkhyā-nirodha) is precisely this Āgama doctrine recast within the Yogācāra framework.

2.2 The Āgamas — The Fourth Dhyāna's Immovability and the Cessation of Perception and Feeling

The Āgama accounts of the fourth dhyāna's "immovable mind" and of the cessation of perception and feeling provide the canonical roots for the unconditioned of immovability and the cessation of perception and feeling.

The Madhyama Āgama records the immovable mind of the fourth dhyāna:

「彼已斷此五蓋……至得第四禪成就遊。彼得如是定，心清淨，無穢無煩，柔軟善住，得不動心，趣向漏盡智通作證。」⁸

"Having abandoned the five hindrances...attaining the fourth dhyāna. Gaining this concentration, with mind purified, free from defilements and disturbances, supple and well-settled, one attains an immovable mind, directed toward the realization of the exhaustion of the outflows."

The "immovable mind" of the fourth dhyāna—suffering and pleasure both ceased, the mind abiding in unshakeable equanimity—is the canonical basis for the unconditioned of immovability. This "immovability" is not rigid stillness but tranquil clarity beyond the duality of suffering and pleasure.

The Saṃyukta Āgama records the progressive deepening through the nine successive concentrations:

「初禪正受時，言語寂滅；第二禪正受時，覺觀寂滅；第三禪正受時，喜心寂滅；第四禪正受時，出入息寂滅；……想受滅正受時，想受寂滅。」⁹

"In the attainment of the first dhyāna, verbal activity ceases; in the second, applied and sustained thought ceases; in the third, rapture ceases; in the fourth, breathing ceases...in the attainment of the cessation of perception and feeling, perception and feeling cease."

From the first dhyāna to the cessation of perception and feeling, each level of concentration eliminates progressively deeper layers of mental activity. The cessation of perception and feeling is the highest of the nine successive concentrations—even "perception" and "feeling" come to a complete halt. The Āgama directly calls this "supreme bliss":

「想受滅，身作證具足住，是名勝樂過於彼者。」¹⁰

"The cessation of perception and feeling, realized in person and fully attained—this is the bliss that surpasses all others."

The Buddha's own passage into nirvāṇa also traversed this sequence of concentrations: "entering the first dhyāna...emerging from neither-perception-nor-non-perception, entering the cessation attainment."¹¹ The cessation attainment occupies a special position in the Buddha's passing, directly connecting to the practice significance of the cessation of perception and feeling as an unconditioned dharma.

2.3 The Prajñāpāramitā — True Thusness, Dharma-Nature, and Ultimate Reality

The Prajñāpāramitā literature's descriptions of true thusness are the primary sūtra source for true thusness unconditioned among the six. The Mahāprajñāpāramitā Sūtra unfolds the meaning of true thusness through a series of synonyms:

「一切智智清淨故真如清淨……若一切智智清淨，若真如清淨，若大喜清淨，無二、無二分、無別、無斷故。一切智智清淨故法界、法性、不虛妄性、不變異性、平等性、離生性、法定、法住、實際、虛空界、不思議界清淨。」¹²

"Because all-knowledge-wisdom is pure, true thusness is pure...the purity of all-knowledge-wisdom and the purity of true thusness are nondual, without division, without distinction, without interruption. Because all-knowledge-wisdom is pure, the dharma-realm, dharma-nature, non-falsity, non-changeability, equality, freedom from arising, dharma-fixity, dharma-abiding, ultimate reality, space-realm, and inconceivable realm are pure."

This passage is pivotal: true thusness, dharma-realm, dharma-nature, ultimate reality, non-falsity, non-changeability, equality—all these names point to the same reality, and they are "nondual" with all-knowledge-wisdom. The true thusness of the Prajñāpāramitā is not an isolated concept but the real nature of all dharmas—pervading all domains, ever abiding in its nature.

The Mahāprajñāpāramitā Sūtra further describes the non-arising and non-ceasing nature of prajñāpāramitā:

「甚深般若波羅蜜多於一切法不生不滅、不成不壞、不向不背、不引不遣、不取不捨、不垢不淨、不增不減、不近不遠。」¹³

"The profound prajñāpāramitā neither arises nor ceases in any dharma, neither forms nor disintegrates, neither approaches nor retreats, neither draws in nor sends away, neither grasps nor relinquishes, is neither defiled nor pure, neither increases nor decreases, is neither near nor far."

Eight pairs of negation—this is the complete unfolding of the Heart Sūtra's "neither arising nor ceasing, neither defiled nor pure, neither increasing nor decreasing." The Prajñāpāramitā's non-arising and non-ceasing resonates across systems with the Āgama's "the unconditioned neither arises, nor abides, nor changes, nor ceases": what prajñā's contemplation of emptiness reveals as the true mark of all dharmas is precisely what Yogācāra calls true thusness unconditioned.

2.4 The Saṃdhinirmocana Sūtra — The Perfectly Accomplished Nature and Ultimate Non-Nature

The Saṃdhinirmocana Sūtra is the Buddha-spoken source of the three-nature contemplation (established in S3-P01). In the context of unconditioned dharmas, its teaching on the perfectly accomplished nature is especially critical.

The definition of the perfectly accomplished characteristic:

「云何諸法圓成實相？謂一切法平等真如。」¹⁴

"What is the perfectly accomplished characteristic of all dharmas? It is the equal true thusness of all dharmas."

The perfectly accomplished characteristic is "the equal true thusness of all dharmas"—not that some dharmas have true thusness while others do not, but that the nature of all dharmas without exception is true thusness, equal and without differentiation. This resonates profoundly with the structure of the Hundred Dharmas: from mind dharmas to unconditioned dharmas, every single dharma has its true thusness—the true thusness of form dharmas, of mind dharmas, of afflictions, of awakening. "All dharmas are equal."

The sūtra further links the perfectly accomplished nature with the ultimate non-nature:

「復有諸法圓成實相，亦名勝義無自性性。何以故？一切諸法法無我性名為勝義。」¹⁵

"The perfectly accomplished characteristic of all dharmas is also called the ultimate non-nature. Why? Because the dharma-selflessness of all dharmas is called the ultimate."

The perfectly accomplished nature is called "ultimate non-nature"—seemingly paradoxical (the perfectly accomplished is "existent," non-nature is "empty"), yet this is the essence of the Middle Way: true thusness is not an entity with intrinsic nature, but the ultimate revealed by the dharma-selflessness of all dharmas. The "existence" of true thusness is not the existence of the thoroughly imagined; the "emptiness" of true thusness is not the emptiness of annihilation.

The most important passage:

「法無我性所顯勝義無自性性，於常常時、於恒恒時，諸法法性、安住、無為。一切雜染不相應故，於常常時、於恒恒時，諸法法性安住故無為。」¹⁶

"The ultimate non-nature revealed by dharma-selflessness—at all times, at all times, the dharma-nature of all dharmas abides, unconditioned. Because it is incompatible with all defilement, at all times the dharma-nature of all dharmas abides, and is therefore unconditioned."

"At all times, the dharma-nature of all dharmas abides, unconditioned"—true thusness does not begin to exist only through practice; it abides "at all times." All defilements are "incompatible" with it—not that true thusness has distanced itself from defilement, but that defilement has never truly stained true thusness. This is the key to understanding the six unconditioned dharmas: unconditioned dharmas are not a separate world outside conditioned dharmas, but the dharma-nature of conditioned dharmas "at all times."

The sūtra also reveals the cognitive pathway among the three natures:

「依他起相上，遍計所執相無執以為緣故，圓成實相而可了知。」¹⁷

"On the other-dependent characteristic, through the condition of non-grasping at the thoroughly imagined characteristic, the perfectly accomplished characteristic can be discerned."

This is remarkably concise: the perfectly accomplished nature is not found by departing from the other-dependent, but is discerned on the other-dependent when grasping (the thoroughly imagined) ceases. In other words, true thusness is not elsewhere—remove the thoroughly imagined, and the perfectly accomplished naturally appears on the other-dependent.

2.5 The Śūraṅgama Sūtra — The Wondrous True Thusness of the Tathāgatagarbha

The Śūraṅgama Sūtra's central teaching on "the wondrous true thusness of the tathāgatagarbha" forms an important doctrinal dialogue with Yogācāra's true thusness unconditioned.

「生滅去來，本如來藏常住妙明不動周圓妙真如性。性真常中求於去來、迷悟、死生了無所得。」¹⁸

"Arising and ceasing, coming and going—all are fundamentally the tathāgatagarbha's ever-abiding, wondrously luminous, unmoving, all-pervading, wondrous true thusness nature. Within the truly permanent nature, seeking coming and going, delusion and awakening, death and birth, nothing whatsoever can be found."

The Śūraṅgama's tathāgatagarbha perspective: the very substance of arising and ceasing, coming and going (the cycling of conditioned dharmas through the four marks) is the wondrous true thusness of the tathāgatagarbha—ever-abiding, wondrously luminous, unmoving, all-pervading. At the level of true thusness, seeking "coming and going," "delusion and awakening," "death and birth" yields nothing at all.

The sūtra further poses the same question repeatedly through the five aggregates, six sense gates, twelve sense bases, and eighteen elements—all categories of conditioned dharmas:

"How are the five aggregates fundamentally the wondrous true thusness of the tathāgatagarbha?" "How are the six sense gates fundamentally the wondrous true thusness of the tathāgatagarbha?" "How are the twelve sense bases fundamentally the wondrous true thusness of the tathāgatagarbha?" "How are the eighteen elements fundamentally the wondrous true thusness of the tathāgatagarbha?"¹⁹

The very structure of this repeated questioning is itself a teaching: every layer of conditioned dharmas, traced to its ultimate ground, is "the wondrous true thusness of the tathāgatagarbha." This forms a structural parallel with the Yogācāra thesis that "the real nature of consciousness-only is none other than true thusness"—only the Yogācāra replaces the tathāgatagarbha framework with the "nature of consciousness" framework.²⁰

The "great perfect mirror, the empty tathāgatagarbha" in fascicle 6 of the Śūraṅgama directly echoes the great mirror wisdom (ādarśa-jñāna) of post-transformation consciousness:

「立大圓鏡空如來藏，承順十方微塵如來祕密法門受領無失。」²¹

"Establishing the great perfect mirror, the empty tathāgatagarbha, according with and receiving without loss the secret dharma-gates of tathāgatas as numerous as atoms throughout the ten directions."

The great mirror wisdom (the wisdom of the eighth consciousness after transformation) is situated within the tathāgatagarbha context in the Śūraṅgama—the tathāgatagarbha is the substance, the great mirror wisdom is the function; the two are neither one nor different.

2.6 The Avataṃsaka Sūtra — Dharma-Realm and the Non-Obstruction of Principle and Phenomena

The Huayan school's four dharma-realms provide a comprehensive framework for all levels of existence, forming deep intertextual resonances with Yogācāra unconditioned dharmas.

「統唯一真法界。謂總該萬有，即是一心。然心融萬有，便成四種法界：一事法界……二理法界……三理事無礙法界……四事事無礙法界。」²²

"In total there is only the one true dharma-realm, which encompasses all existence and is none other than one mind. Yet as mind pervades all existence, it unfolds into four dharma-realms: the dharma-realm of phenomena...the dharma-realm of principle...the dharma-realm of non-obstruction between principle and phenomena...the dharma-realm of non-obstruction between phenomena and phenomena."

The four dharma-realms can be mapped heuristically onto the Yogācāra three natures: the dharma-realm of phenomena corresponds to the other-dependent, the dharma-realm of principle to the perfectly accomplished, and the thoroughly imagined to the false superimposition upon the dharma-realm of phenomena. The non-obstruction of principle and phenomena—principle does not obstruct phenomena, phenomena do not obstruct principle—corresponds to the neither-one-nor-different relationship between the other-dependent and the perfectly accomplished: true thusness does not depart from the other-dependent, and the other-dependent does not depart from true thusness.²³

「事事無礙。若唯約事則彼此相礙。若唯約理則無可相礙。今以理融事，事則無礙。」²⁴

"Non-obstruction between phenomena and phenomena. If considered only in terms of phenomena, they obstruct each other. If considered only in terms of principle, there is nothing to obstruct. Now, with principle pervading phenomena, phenomena are unobstructed."

The dharma-realm of non-obstruction between phenomena and phenomena—where every individual phenomenon interpenetrates freely—is the ultimate horizon of Huayan thought. In the Yogācāra framework, this corresponds to the buddha-fruit after the transformation of consciousness into wisdom: the four wisdoms fully luminous, illuminating all ten directions, every dharma a manifestation of true thusness.

"One particle of dust contains the dharma-realm" resonates with the Yogācāra teaching that "all dharmas equally are true thusness":

「如一微塵其相不大，而能容攝無邊法界。」²⁵

"A single particle of dust, though its form is not great, can contain the boundless dharma-realm."

A single particle of dust—the smallest conditioned dharma—can "contain the boundless dharma-realm" because its nature is true thusness, and true thusness pervades all domains. This is the Huayan expression of the Hundred Dharmas' destination: every dharma is a door into the dharma-realm.

2.7 The Mahāprajñāpāramitā-śāstra — "Even the Nature of the Conditioned Is Empty"

The Mahāprajñāpāramitā-śāstra's discussion of unconditioned dharmas opens an important perspective from the Prajñā standpoint of "even the nature of the conditioned is empty":

「有為性尚空，何況有為法！無為性尚空，何況無為法！」²⁶

"Even the nature of the conditioned is empty—how much more so conditioned dharmas! Even the nature of the unconditioned is empty—how much more so unconditioned dharmas!"

The depth of this passage cannot be overestimated: not only are conditioned dharmas empty, but even "the conditioned nature" is empty; not only is the designation of unconditioned dharmas provisional, but even "the unconditioned nature" is empty. The ultimate contemplation of prajñā does not stop at the dichotomy of "the conditioned is empty, the unconditioned is real" but extends to the double negation of "even the conditioned nature is empty...even the unconditioned nature is empty." This is the Middle Way at its most radical.

The Śāstra further discusses "the thusness of form" (sè rú 色如) as non-arising and non-ceasing:

「是色如不生不滅、不來不去、不增不減、不垢不淨，是為知色如。」²⁷

"This thusness of form neither arises nor ceases, neither comes nor goes, neither increases nor decreases, is neither defiled nor pure—this is to know the thusness of form."

The "thusness of form"—the true thusness of form dharmas—is already non-arising and non-ceasing. Form dharmas are the most "substantial" among conditioned dharmas (possessing resistance), yet their "thusness" is already non-arising and non-ceasing. This aligns perfectly with the arc of the Hundred Dharmas: one need not traverse all conditioned dharmas to "find" true thusness, because the "thusness" of every dharma already is true thusness. Ordinary beings, obscured by the thoroughly imagined, simply do not see that all dharmas are originally thus.

The Śāstra also explicitly states the nonduality of nirvāṇa and the world:

「見涅槃即世間故。」²⁸

"Seeing that nirvāṇa is none other than the world."

Nirvāṇa is the world—this is a core thesis of Prajñā-Madhyamaka, complementing the Yogācāra position that true thusness is not separate from consciousness: true thusness is not outside consciousness, nirvāṇa is not outside the world, the unconditioned is not outside the conditioned.

2.8 The Laṅkāvatāra Sūtra — Tathāgatagarbha and Self-Realized Noble Wisdom

The Laṅkāvatāra Sūtra, with its central concern for the relationship between tathāgatagarbha and ālaya-vijñāna, offers a distinctive teaching angle on unconditioned dharmas.

「阿梨耶識名如來藏，無共意轉識熏習故名為空，具足無漏熏習法故，名為不空。」²⁹

"Ālaya-vijñāna is called tathāgatagarbha. Because it is free from perfuming by the shared manas and active consciousnesses, it is called 'empty'; because it is replete with undefiled perfuming dharmas, it is called 'not empty.'"

This passage reveals the two faces of ālaya-vijñāna and tathāgatagarbha: from the "empty" aspect (free from shared perfuming by the active consciousnesses), ālaya-vijñāna is called tathāgatagarbha; from the "not empty" aspect (replete with undefiled dharmas), tathāgatagarbha is endowed with all pure qualities. This echoes the structure of the six unconditioned dharmas centered on true thusness: the "empty" face of true thusness unconditioned is its freedom from the thoroughly imagined; the "not empty" face is the fully endowed merits of the perfectly accomplished nature.

The Laṅkāvatāra's description of the tathāgatagarbha:

「如來藏世間不生不死，不來不去，常恒清涼不變。」³⁰

"The tathāgatagarbha in the world neither arises nor perishes, neither comes nor goes; it is ever-abiding, cool, and unchanging."

"Ever-abiding, cool, and unchanging"—this is precisely the meaning of the name "true thusness": "True means real, indicating non-falsity; thus means ever-same, indicating non-changeability" (Cheng Weishi Lun, fascicle 9). The tathāgatagarbha's "ever-abiding" is true thusness's "ever-same."

The Laṅkāvatāra further integrates the five dharmas, three natures, eight consciousnesses, and two selflessnesses into a unity:

「五法三自性，八識二無我，得於如幻定，隨意所成身。」³¹

「五法三自性，及與八種識，二種無有我，悉攝摩訶衍。」³²

Among the five dharmas (name, appearance, discrimination, right wisdom, and thusness), "thusness" (tathatā) is true thusness unconditioned. Among the three natures, the perfectly accomplished is true thusness. The four wisdoms after the eight consciousnesses' transformation are the manifestation of true thusness in awakened awareness. The two selflessnesses (person-selflessness and dharma-selflessness) are the gateways to realizing true thusness. The Laṅkāvatāra's integrative formula of five dharmas, three natures, eight consciousnesses, and two selflessnesses provides a direct canonical framework for S3-P14's treatment of the transformation of consciousness into wisdom.

The Laṅkāvatāra also indicates that self-realized noble wisdom matures at the eighth bodhisattva stage:

「云何菩薩摩訶薩得自覺聖智善樂？謂：得無生法忍，住第八菩薩地。」³³

"How does a bodhisattva-mahāsattva attain the wholesome bliss of self-realized noble wisdom? By attaining the acceptance of the non-arising of dharmas and abiding on the eighth bodhisattva stage."

Self-realized noble wisdom (pratyātma-jñāna)—wisdom that is neither dependent on language nor on another's guidance, but self-verified internally—requires the eighth stage (the Immovable Ground) to mature. This resonates doctrinally with the "immovability" of the unconditioned of immovability: the Immovable Ground's "immovability" is not merely meditative stillness but irreversible realization of true thusness.

2.9 The Heart Sūtra — The Non-Arising and Non-Ceasing of the Empty Mark of All Dharmas

The Heart Sūtra's teaching on "the empty mark of all dharmas" is the most condensed Prajñā expression of unconditioned dharma doctrine.

「是諸法空相，不生不滅，不垢不淨，不增不減。」³⁴

"The empty mark of all dharmas: neither arising nor ceasing, neither defiled nor pure, neither increasing nor decreasing."

S2-P06 has demonstrated that "the empty mark of all dharmas" points to the true appearance of all dharmas. In the S3 context, the Heart Sūtra's "neither arising nor ceasing, neither defiled nor pure, neither increasing nor decreasing" is precisely the Prajñā expression of the Hundred Dharmas' destination—after traversing the conditioned analysis of the five aggregates (mind dharmas / mental factors), six sense gates, twelve sense bases, and eighteen elements (form dharmas / sense faculties and objects), what is contemplated is the "empty mark" of all dharmas: the non-arising and non-ceasing of true thusness.

The relationship between the Heart Sūtra and the Hundred Dharmas can be understood thus: the Hundred Dharmas is the path of "analysis" (dismantling all dharmas into one hundred components), while the Heart Sūtra is the path of "contemplation" (directly seeing the empty mark of all dharmas). Both paths converge at the same destination—the non-arising and non-ceasing of true thusness. The Hundred Dharmas guides you step by step to the threshold of true thusness through meticulous Yogācāra analysis; the Heart Sūtra lets you see true thusness directly through the immediacy of prajñā. S3-P13 is the convergence of these two paths at the "destination."

B. Treatise Sources

2.10 The Hundred Dharmas Treatise's Listing and the Cheng Weishi Lun's Six Unconditioned Dharma Definitions

The Hundred Dharmas Treatise lists the six unconditioned dharmas:

「第五無為法者，略有六種：一虛空無為、二擇滅無為、三非擇滅無為、四不動滅無為、五想受滅無為、六真如無為。」³⁵

The Pañcaskandhaka-prakaraṇa provides more detailed definitions:

「云何虛空？謂若容受諸色。云何非擇滅？謂若滅非離繫。……云何擇滅？謂若滅是離繫。……云何真如？謂諸法法性、法無我性。」³⁶

"What is space? That which accommodates form. What is non-analytical cessation? Cessation that is not liberation. What does this mean? Cessation of the aggregates without the antidote of afflictions. What is analytical cessation? Cessation that is liberation. What does this mean? Through the antidote of afflictions, the aggregates permanently cease to arise. What is true thusness? The dharma-nature and dharma-selflessness of all dharmas."

The Pañcaskandhaka's definitions are concise: space is "accommodating form," non-analytical cessation is "cessation that is not liberation," analytical cessation is "cessation that is liberation," and true thusness is "dharma-nature, dharma-selflessness." Notably, the Pañcaskandhaka lists only four unconditioned dharmas (space, non-analytical cessation, analytical cessation, and true thusness); the unconditioned of immovability and cessation of perception and feeling were further differentiated in subsequent Yogācāra development.

The Abhidharma-samuccaya establishes a system of eight unconditioned dharmas:

「此無為法復有八種，謂善法真如、不善法真如、無記法真如、虛空、非擇滅、擇滅、不動及想受滅。」³⁷

The Samuccaya subdivides true thusness into three—the true thusness of wholesome dharmas, unwholesome dharmas, and neutral dharmas—not because true thusness itself has three different substances, but because the same true thusness exists equally in wholesome, unwholesome, and neutral dharmas. The Abhidharma-samuccaya-vyākhyā states explicitly: "True thusness is provisionally established as three by analytical division, not by virtue of its own nature."³⁸

The Samuccaya's interpretation of true thusness is especially rich, revealing its multiple names through seven questions and answers:

「何等善法真如？謂無我性，亦名空性、無相、實際、勝義、法界。何故真如說名真如？謂彼自性無變異故。何故真如名無我性？離二我故。何故真如名為空性？一切雜染所不行故。何故真如名為無相？以一切相皆寂靜故。何故真如名為實際？以無顛倒所緣性故。何故真如名為勝義？最勝聖智所行處故。何故真如名為法界？一切聲聞獨覺諸佛妙法所依相故。」³⁹

"What is the true thusness of wholesome dharmas? Selflessness, also called emptiness, signlessness, ultimate reality, supreme meaning, dharma-realm. Why is true thusness called 'true thusness'? Because its nature is without change. Why is it called 'selflessness'? Because it is free from the two selves. Why is it called 'emptiness'? Because all defilements do not operate in it. Why is it called 'signlessness'? Because all marks are quiescent in it. Why is it called 'ultimate reality'? Because it is the object free from distortion. Why is it called 'supreme meaning'? Because it is the domain of the most supreme noble wisdom. Why is it called 'dharma-realm'? Because it is the basis of the wonderful dharmas of all śrāvakas, pratyekabuddhas, and buddhas."

True thusness bears seven names—true thusness, selflessness, emptiness, signlessness, ultimate reality, supreme meaning, and dharma-realm—each revealing one of its facets. This perfectly matches the Prajñāpāramitā's system of synonyms for true thusness (§2.3) and provides doctrinal support for the six unconditioned dharmas being centered on true thusness: because true thusness pervades all domains, it can manifest different facets in different contexts (space, analytical cessation, non-analytical cessation, and so on).

The Vyākhyā provides definitions for the remaining unconditioned dharmas:

Space: "The absence of materiality (arūpya), accommodating all activities." Non-analytical cessation: "Cessation that is not liberation, which does not permanently destroy latent afflictions." Analytical cessation: "Cessation that is liberation, which permanently destroys latent afflictions." Immovability: "Having abandoned desire for the purity realm (śubhakṛtsna) but not yet abandoned desire for higher realms—the unconditioned cessation of suffering and pleasure." Cessation of perception and feeling: "Having abandoned desire for the sphere of nothingness, preceded by the volition to cease mentation—the cessation of impermanent mind and mental factors together with one portion of the permanent ones—this is an unconditioned state."⁴⁰

The Cheng Weishi Lun Shuji's classification further clarifies:

「真如無為非滅諦攝，擇滅無為滅受相無為不動無為是滅諦攝。」⁴¹

"True thusness unconditioned is not subsumed under the truth of cessation; analytical cessation, cessation of perception and feeling, and the unconditioned of immovability are subsumed under the truth of cessation."

This classification is remarkably precise: true thusness unconditioned is the real nature of all dharmas, not belonging to any of the four truths; only analytical cessation, cessation of perception and feeling, and the unconditioned of immovability are subsumed under the truth of cessation—they are attainments from the practice of eliminating afflictions, while true thusness is the intrinsic dharma-nature.

2.11 Cheng Weishi Lun, Fascicle 9 — The Perfectly Accomplished Nature Is True Thusness

Cheng Weishi Lun, fascicle 9, establishes the identity of the perfectly accomplished nature and true thusness through verse and extended commentary:

「此諸法勝義亦即是真如。真謂真實，顯非虛妄；如謂如常，表無變易。謂此真實於一切位常如其性，故曰真如，即是湛然不虛妄義。」⁴²

"The ultimate meaning of all dharmas is none other than true thusness. 'True' means real, indicating non-falsity; 'thus' means ever-same, indicating non-changeability. This reality at all stages ever abides in its nature—therefore it is called 'true thusness,' which means the tranquil and non-false."

This exegesis unpacks the two characters of "true thusness" (zhēn rú 真如): "true" is real, non-false; "thus" is ever-same, unchanging. "At all stages ever abiding in its nature"—in the ordinary being's stage, in the sage's stage, in the buddha-fruit, the nature of true thusness has never changed. Neither diminished in ordinary beings nor augmented in buddhahood—this is the Yogācāra ground for the Heart Sūtra's "neither increasing nor decreasing."

The verse:

「此諸法勝義，亦即是真如，常如其性故，即唯識實性。」⁴³

"The ultimate reality of all dharmas Is none other than true thusness. Ever abiding in its nature, It is the real nature of consciousness-only."

"The real nature of consciousness-only"—these four characters are the pivotal anchor of the entire series. True thusness is not something outside consciousness-only; it is "the real nature of consciousness-only"—the real nature of consciousness itself. All dharmas are transformations of consciousness (consciousness-only), and the real nature of consciousness is true thusness (real nature). The one hundred dharmas of the Hundred Dharmas are all different facets of consciousness, and the real nature of all one hundred is true thusness.

The Cheng Weishi Lun further establishes the meaning of "real nature" through a double distinction:

「此性即是唯識實性，謂唯識性略有二種：一者虛妄，謂遍計所執；二者真實，謂圓成實性，為簡虛妄說『實性』言。復有二性：一者世俗，謂依他起；二者勝義，謂圓成實，為簡世俗故說『實性』。」⁴⁴

"This nature is the real nature of consciousness-only. Consciousness-only has two aspects: one is false, namely the thoroughly imagined; the other is real, namely the perfectly accomplished—to distinguish from the false, it is called 'real nature.' There are also two further aspects: one is conventional, namely the other-dependent; the other is ultimate, namely the perfectly accomplished—to distinguish from the conventional, it is called 'real nature.'"

"Real nature" is doubly distinguished: first, from the false (not the "consciousness-nature" of the thoroughly imagined, but the real consciousness-nature); second, from the conventional (not the "consciousness-nature" of the other-dependent, but the ultimate consciousness-nature). After this double distinction, "the real nature of consciousness-only" is definitively identified as the perfectly accomplished nature—true thusness.

Fascicle 9 also discusses the relationship between transformation of the basis and true thusness:

「『依』謂所依，即依他起……轉謂二分，轉捨、轉得。由數修習無分別智，斷本識中二障麁重，故能轉捨依他起上遍計所執，及能轉得依他起中圓成實性。」⁴⁵

"The 'basis' is the other-dependent nature...Transformation has two aspects: turning away and turning toward. Through repeated cultivation of non-discriminating wisdom, eliminating the coarse obstructions of the two barriers within the base consciousness, one can turn away from the thoroughly imagined imposed upon the other-dependent, and turn toward the perfectly accomplished within the other-dependent."

Transformation of the basis—turning away from the thoroughly imagined, turning toward the perfectly accomplished—is the core of the entire Yogācāra path. Note: one does not "leave" the other-dependent to find the perfectly accomplished; rather, one turns away from the thoroughly imagined "upon" the other-dependent and turns toward the perfectly accomplished "within" the other-dependent. The three natures are not three different worlds but three dimensions of the same dharma.

The most profound passage:

「如雖性淨而相雜染，故離染時假說新淨，即此新淨說為轉依。」⁴⁶

"Although thusness is intrinsically pure, its appearance is defiled; therefore, when defilement is removed, purity is provisionally spoken of as 'new.' This 'new purity' is what is called transformation of the basis."

Three key points: first, true thusness is the shared basis of both saṃsāra and nirvāṇa—not two different things, but the same true thusness in defiled and pure states; second, "thusness is intrinsically pure but its appearance is defiled"—the nature of true thusness is pure (intrinsically pure), but it presents a defiled appearance in the ordinary being's stage (appearance defiled); third, "when defilement is removed, purity is provisionally spoken of as 'new'"—the "new" purity is merely a provisional designation; true thusness itself has not undergone any change. This is the deep doctrinal ground of analytical cessation: practice does not create new purity but reveals intrinsic purity.

2.12 Cheng Weishi Lun, Fascicle 9 — Ten True Thusnesses and Revelation through the Two Emptinesses

Fascicle 9 discusses the ten true thusnesses realized across the ten stages:

「十真如者：一、遍行真如，謂此真如二空所顯，無有一法而不在故。」⁴⁷

"The ten true thusnesses: first, the all-pervading true thusness, which is revealed by the two emptinesses and is such that no dharma is without it."

The ten true thusnesses are not ten different true thusnesses but the same true thusness realized at progressively deeper levels across the ten stages. The "all-pervading" true thusness is "all-pervading" because "no dharma is without it"—true thusness pervades every dharma. This again confirms: not only "true thusness unconditioned" is true thusness; every dharma in the Hundred Dharmas has its true thusness.

"Revealed by the two emptinesses" is the key phrase: true thusness is "revealed" through the practice-realization of person-emptiness and dharma-emptiness. It is not created but disclosed once the obscurations (the two self-grasping) are removed.

2.13 Cheng Weishi Lun, Fascicle 10 — The Real Nature of Consciousness-Only and the Four Wisdoms

Fascicle 10 includes "consciousness-only true thusness" among the seven true thusnesses:

「七真如者：……三、唯識真如，謂染淨法，唯識實性。」⁴⁸

"The seven true thusnesses: ...third, consciousness-only true thusness, meaning the real nature of consciousness-only with respect to both defiled and pure dharmas."

"Consciousness-only true thusness"—a distinctly Yogācāra formulation. "The real nature of consciousness-only with respect to both defiled and pure dharmas"—whether defiled or pure, all dharmas as transformations of consciousness share the same real nature: true thusness.

The treatment of the four wisdoms is directly relevant to unconditioned dharmas—the four wisdoms are the pure functions of the eight consciousnesses after transformation of the basis, representing true thusness as it manifests in awakened awareness:

The great mirror wisdom (transformation of the eighth consciousness):

"Free from all discrimination...not forgetting, not confused regarding any object-field...like a great, perfect mirror manifesting all forms."⁴⁹

The wisdom of equality (transformation of the seventh consciousness):

"Regarding all dharmas, self and other, all sentient beings—all as equal. Great compassion ever accompanying."⁵⁰

The wisdom of wondrous contemplation (transformation of the sixth consciousness):

"Skillfully contemplating the specific and shared characteristics of all dharmas, operating without obstruction."⁵¹

The wisdom of accomplished action (transformation of the first five consciousnesses):

"For the sake of benefiting and delighting all sentient beings, manifesting throughout the ten directions various transformative activities of body, speech, and mind."⁵²

The full treatment of the four wisdoms belongs to S3-P14, but a structural connection must be noted here: the four wisdoms are "true thusness manifesting in awakened awareness." The great mirror wisdom is true thusness's total reflection; the wisdom of equality is its equanimity face; the wisdom of wondrous contemplation is its discernment face; the wisdom of accomplished action is its altruistic face. Unconditioned dharmas are the "substance" (tǐ 體) of true thusness; the four wisdoms are its "function" (yòng 用).

The Middle Way verse from fascicle 7 provides the overarching ontological framework for the six unconditioned dharmas:

「故說一切法，非空非不空，有無及有故，是則契中道。」⁵³

"Therefore it is said: all dharmas are neither empty nor not empty. Because of existence, non-existence, and existence—this accords with the Middle Way."

All dharmas are "neither empty nor not empty"—conditioned dharmas are not empty (the other-dependent exists), conditioned dharmas are not not empty (the thoroughly imagined is empty); unconditioned dharmas are not empty (true thusness as real nature exists), unconditioned dharmas are not not empty (true thusness is empty of discursive marks). The Middle Way is to fall into neither existence nor non-existence. The six unconditioned dharmas are centered on true thusness, and true thusness itself is the Middle Way—the real nature of all dharmas that is neither empty nor existent.

2.14 Yogācārabhūmi-śāstra — The Perfectly Accomplished Nature Is One Flavor Throughout

The Yogācārabhūmi-śāstra's treatment of the perfectly accomplished nature provides authoritative support for the "one flavor" nature of true thusness:

「於一切處皆一味故，圓成實自性無有安立品數差別。」⁵⁴

"Because it is one flavor throughout all domains, the perfectly accomplished nature has no established numerical distinctions."

"One flavor throughout all domains"—true thusness is the same in all dharmas without differentiation.⁵⁵ One cannot say that the true thusness of form dharmas differs from that of mind dharmas, or that the true thusness of wholesome dharmas differs from that of unwholesome dharmas—the true thusness of all dharmas is "one flavor." This is the Yogācāra-school basis for the six unconditioned dharmas being centered on true thusness.

「圓成實自性，當言無所安住、無所依止。」⁵⁶

"The perfectly accomplished nature should be said to have no basis and no support."

The perfectly accomplished nature—true thusness—has "no basis and no support." This reveals a profound doctrinal point: the first four categories of the Hundred Dharmas (conditioned dharmas) all have supports—mental factors depend on mind dharmas, form dharmas depend on consciousness's transformation, dissociated factors depend on the positions of form and mind. But true thusness depends on nothing; it is the real nature of all dharmas, not their product.

The Yogācārabhūmi also discusses true thusness as the object-condition (ālambana-pratyaya) for supramundane dharmas:

「諸出世間法從真如所緣緣種子生，非彼習氣積集種子所生。」⁵⁷

"Supramundane dharmas arise from seeds conditioned by taking true thusness as their object, not from seeds that are accumulations of habitual impressions."

Supramundane dharmas—undefiled wisdom—do not arise from worldly habitual seeds but from "seeds conditioned by true thusness as object." This reveals the fundamental mechanism of practice: practice does not create wisdom from nothing but, by taking true thusness as object, allows intrinsic undefiled seeds to become active. Hearing the dharma, reflection, meditation—all these establish the conditional circumstances for taking true thusness as object, so that undefiled wisdom naturally arises.

「轉依是常，無取受性，緣真如境聖道，方能轉依故。」⁵⁸

"Transformation of the basis is permanent—without the nature of grasping and receiving. Only the noble path that takes true thusness as its object can bring about transformation of the basis."

Transformation of the basis is "permanent"—once accomplished, it is irreversible, because its foundation is true thusness, which ever abides in its nature.

2.15 Cheng Weishi Lun — Unconditioned Dharmas Are Not Separate from Consciousness

The Cheng Weishi Lun, fascicle 8, provides the three-nature classification of the six unconditioned dharmas—one of the most critical treatise sources for this paper:

「虛空、擇滅、非擇滅等，何性攝耶？三皆容攝。心等變似虛空等相，隨心生故，依他起攝；愚夫於中，妄執實有，此即遍計所執性攝；若於真如，假施設有虛空等義，圓成實攝。」⁵⁹

「是故此三，不離心等。」⁶⁰

This classification thoroughly dismantles a common misunderstanding of unconditioned dharmas—the assumption that they are "absolute truths" existing independently outside consciousness. The Cheng Weishi Lun's position is unequivocal: space-like, analytical cessation, non-analytical cessation, and other unconditioned dharmas "do not depart from mind." They can be classified under all three natures. As appearances produced by mind resembling space, they are other-dependent; as objects falsely grasped as truly existent, they are thoroughly imagined; as meanings provisionally established upon true thusness, they are perfectly accomplished.

"Provisionally established upon true thusness as having the meaning of space"—this phrase is the key within the key. Space-like unconditioned, analytical cessation, and so on are different meanings "provisionally established" upon true thusness—they are not additional unconditioned dharmas independent of true thusness but are the provisional designations of true thusness in different contexts. True thusness is the substance; the differences among the six unconditioned dharmas are their functions.

The six dharma-categories all possess the three natures:

「彼六法中，皆具三性。色、受、想、行、識及無為，皆有妄執緣生理故。」⁶¹

"All six dharma-categories possess the three natures. Form, feeling, perception, volition, consciousness, and the unconditioned all have falsely grasped and dependently originated dimensions."

The six categories (form, feeling, perception, volition, consciousness, and the unconditioned) "all possess the three natures"—even unconditioned dharmas are no exception. The unconditioned too has a falsely grasped dimension (thoroughly imagined), a dimension of manifestation through consciousness (other-dependent), and a dimension as the real dharma-nature (perfectly accomplished). This is the most thoroughgoing expression of the Yogācāra Middle Way: no dharma can be understood outside the framework of the three natures.

2.16 Cheng Weishi Lun — The Eighth Consciousness Maintains the Body in the Cessation Attainment

The argument that the eighth consciousness maintains the body during the cessation attainment is the core doctrinal basis for the cessation of perception and feeling as an unconditioned dharma, and directly connects with S3-P12's treatment of the cessation attainment as a saintly achievement.

"The sūtra says: one who abides in the cessation attainment has all physical, verbal, and mental activities ceased, yet lifespan is not extinguished, warmth is not departed, and the sense faculties are not deteriorated—consciousness does not leave the body."⁶²

"If in this state there were absolutely no consciousness, the person would be like rubble or stone, no longer counted among sentient beings. How could one be called 'one who abides in the cessation attainment'?"⁶³

"Therefore, even in mindless states such as the cessation attainment, just as in states with mind, there is definitely consciousness present—possessing sense faculties, lifespan, and warmth, and counted among sentient beings."⁶⁴

The Cheng Weishi Lun establishes through multiple arguments that in the cessation attainment, the first six consciousnesses all cease and the defiled portion of the seventh consciousness ceases, but the eighth consciousness—ālaya-vijñāna—does not cease. The cessation of perception and feeling is therefore not a blank state in which "all consciousness has been extinguished," but a state in which, with the eighth consciousness still maintaining the body, the cessation of all coarse mental activity reveals an "unconditioned" dimension. This "unconditioned" is the domain of saintly realization—not nothingness, but one facet of true thusness's manifestation when all gross mental activity has come to rest.

2.17 Verses on the Eight Consciousnesses — The Four Transformation Verses

The four sets of three verses for each consciousness group in the Verses on the Eight Consciousnesses include a "transformation verse" (the third verse) describing each group's transformation from consciousness into wisdom. These four transformation verses are the direct embodiment of unconditioned dharma doctrine in practice.

The first five consciousnesses transform into the wisdom of accomplished action:

「圓明初發成無漏，三類分身息苦輪。」⁶⁵

"When perfect luminosity first arises, becoming undefiled, the three types of emanation bodies bring the wheel of suffering to rest."

The sixth consciousness transforms into the wisdom of wondrous contemplation:

「發起初心歡喜地……觀察圓明照大千。」⁶⁶

"Arising at the initial resolve on the Ground of Joy...wondrous contemplation, perfectly luminous, illuminates a great thousand-fold world."

The seventh consciousness transforms into the wisdom of equality:

「極喜初心平等性……無功用行我恒摧。」⁶⁷

"At the initial resolve of Supreme Joy, the nature of equality...'I' is ceaselessly destroyed through effortless practice."

The eighth consciousness transforms into the great mirror wisdom:

「不動地前纔捨藏……大圓無垢同時發，普照十方塵剎中。」⁶⁸

"Before the Immovable Ground, only then is the 'store' relinquished...the great, undefiled mirror-wisdom arises simultaneously, universally illuminating buddha-fields as numerous as atoms throughout the ten directions."

The four transformation verses display a complete practice arc: from the first Ground of Joy (where the sixth and seventh consciousnesses begin transformation) through the eighth Immovable Ground (where the eighth consciousness undergoes nominal change), to the Vajra Path (the final moment of complete elimination of the two barriers), to the buddha-fruit ("the great, undefiled mirror-wisdom arises simultaneously, universally illuminating buddha-fields as numerous as atoms throughout the ten directions"). The terminus of this arc—"universally illuminating the ten directions"⁶⁹—is the full manifestation of true thusness through the four wisdoms.

2.18 Mahāyāna-saṃgraha — True Thusness and Transformation of the Basis

The Mahāyāna-saṃgraha's description of transformation of the basis centers on the water-and-milk analogy:

「若本識與非本識共起共滅猶如水乳和合……譬如於水，鵝所飲乳。」⁷⁰

"If the base consciousness and the non-base consciousness arise and cease together like water and milk mixed...it is like the goose that drinks the milk from water."

Water and milk mixed—the defiled dharmas (milk) and pure dharmas (water) of ālaya-vijñāna are mixed together. Transformation of the basis is like the goose extracting milk from water—separating the defiled from the pure without destroying the entire consciousness-body. This analogy profoundly reveals the nature of transformation: it is not the annihilation of consciousness but the separation of defiled and pure within consciousness, allowing true thusness (the pure) to manifest.

The Mahāyāna-saṃgraha's discussion of perfuming through hearing reveals the concrete mechanism by which practice moves from the conditioned to the unconditioned:

「此聞熏習雖是世間法……如是如是從下中上次第漸增，如是如是果報識次第漸減，依止即轉。」⁷¹

"This perfuming through hearing, though a worldly dharma...as it gradually increases from lower to middle to upper, the retribution consciousness correspondingly decreases step by step, and the basis is transformed."

Perfuming through hearing—the impression of having heard correct dharma—is a worldly dharma (conditioned), yet it "belongs to the dharma-body" (unconditioned). As hearing-perfuming gradually increases and defiled retribution-consciousness gradually decreases, transformation of the basis is accomplished. This is the bridge from conditioned to unconditioned: worldly hearing and practice (conditioned) takes the dharma-body's true thusness as its destination (unconditioned); the two are nondual.

III. Core Argument

3.1 The Ontological Position of Unconditioned Dharmas — The Real Nature of Consciousness Beyond the Conditioned

The first four categories of the Hundred Dharmas present the complete structure of conditioned dharmas. Reviewing this trajectory:

The eight mind dharmas—the transforming structure of consciousness, possessing the capacity for discernment, the highest ontological density in the Hundred Dharmas. The fifty-one mental factors—psychological qualities arising with and corresponding to mind, possessing functional correspondence. The eleven form dharmas—the material aspect projected by consciousness, possessing resistance (S3-P11). The twenty-four dissociated factors—the conceptually designated aspect of consciousness's activity, lacking even resistance, merely "positionally designated" (S3-P12).

From mind dharmas to dissociated factors, ontological density steadily decreases: discernment → functional correspondence → resistance → positional designation. Dissociated factors already represent the thinnest layer of conditioned dharmas—they are merely concepts designated upon the positions of form and mind.

The fifth category, unconditioned dharmas, is the "real nature of consciousness" reached after traversing conditioned dharmas.

This "traversal" is not spatial (from this shore to that shore) but cognitive—when you see the complete structure of conditioned dharmas clearly: consciousness is transforming (mind dharmas), consciousness is operating (mental factors), consciousness is projecting (form dharmas), consciousness is designating concepts (dissociated factors), you naturally ask: what is the real nature of all this?

The answer is unconditioned dharmas—true thusness.

But here an extremely important distinction must be drawn: unconditioned dharmas are not a separate world "outside" conditioned dharmas. The Cheng Weishi Lun fascicle 8 classification has made this explicit: the six unconditioned dharmas "do not depart from mind"; they can be subsumed under all three natures. The Saṃdhinirmocana's teaching is even more direct: "On the other-dependent, through the condition of non-grasping at the thoroughly imagined, the perfectly accomplished can be discerned"—true thusness is not outside the other-dependent but "within" it.

To use the automobile analogy that has run through the S3 series: mind dharmas are the driver, mental factors are the driving mindset, form dharmas are the road and scenery, and dissociated factors are the map and timetable. What, then, are unconditioned dharmas? The destination of the journey?

No—unconditioned dharmas are the sudden realization that you have been home all along.

The entire journey of the Hundred Dharmas—from departure (mind dharmas) through the scenery (form dharmas) to the map (dissociated factors)—ends with the discovery: the place you are trying to reach is the place you have always been. The real nature of the driver (mind dharmas) is true thusness; the real nature of the road and scenery (form dharmas) is true thusness; the real nature of the map (dissociated factors) is true thusness. The "journey" is an illusion created by the thoroughly imagined; "home" was never left.

✅ Core thesis: Unconditioned dharmas are not the "opposite" of conditioned dharmas but their "reality face"—the real nature of all conditioned operations is true thusness.

3.2 Space-Like Unconditioned — Freedom from Obstruction

Among the six unconditioned dharmas, space-like unconditioned (ākāśa-asaṃskṛta) holds the lowest ontological position.

The Pañcaskandhaka defines it as "accommodating form"; the Vyākhyā as "the absence of materiality, accommodating all activities."⁷² The Cheng Weishi Lun classifies it even more directly—space-like unconditioned is merely the designation of "where form is absent."

Its "unconditioned" quality derives from the fact that it neither arises nor ceases—whether form is present or absent in a given location, the "accommodating nature" of space does not change accordingly. But this non-arising and non-ceasing is a "designated non-arising and non-ceasing"—not the real nature of all dharmas as true thusness is, but merely a nominal description of the state of "absence of form."

Within the hierarchy of the six unconditioned dharmas, space-like unconditioned is closest to conditioned dharmas—it does not even possess "freedom from bondage" (visamyoga) and is not an attainment of practice, only a convenient concept. Yet its presence in the Hundred Dharmas system has its significance: space-like unconditioned points to the most basic meaning of "unconditioned"—not fabricated, not arising and ceasing with conditions. Even the "shallowest" unconditioned concept already gestures toward the possibility of transcending conditioned dharmas.

A practice discernment: the feeling of "spaciousness" during meditation—the experience of great openness and quiet in the mind—can easily be mistaken for seeing "true thusness." But this spacious feeling more closely resembles space-like unconditioned—merely the "accommodation" that appears when mental activity temporarily decreases. True thusness is not spaciousness, not the quiet of "nothing there," but the real nature of all dharmas—when conditioned dharmas are bustling, true thusness is thus; when conditioned dharmas are quiescent, true thusness is also thus. "At all stages ever abiding in its nature"—not "more true thusness" in meditative absorption, not "less true thusness" in distraction.⁷³

3.3 Analytical Cessation — True Thusness Revealed by Prajñā's Elimination of Afflictions

Analytical cessation (pratisaṃkhyā-nirodha) is the unconditioned dharma most directly relevant to practice. "Analytical" (pratisaṃkhyā) is the discriminating function of prajñā-wisdom; "cessation" (nirodha) is the permanent non-arising of defiled dharmas; "freedom from bondage" (visamyoga) is the liberated state free from the bonds of affliction.

The Vyākhyā's definition is concise and complete: "Analytical cessation means cessation that is liberation, which permanently destroys latent afflictions."⁷⁴ "Permanently destroying latent afflictions"—destroying the seeds of affliction (anuśaya) at the level of seeds, not merely temporarily suppressing active manifestations. S3-P09 has demonstrated that fundamental afflictions include both innately arisen and discriminatively arisen types; S3-P10 has demonstrated that subsidiary afflictions are the branches of fundamental afflictions. Analytical cessation's "permanent destruction of latent afflictions" means cutting afflictions at the seed level, not just trimming branches.

The "revelation" logic of analytical cessation is especially profound: analytical cessation is not a new thing "created" by practice; it is the intrinsic freedom-from-bondage that manifests when afflictions are eliminated by wisdom. Cheng Weishi Lun, fascicle 9: "Although thusness is intrinsically pure, its appearance is defiled; therefore, when defilement is removed, purity is provisionally spoken of as 'new.'"⁷⁵ True thusness is intrinsically pure; only its "appearance" is obscured by defilement. The "new purity" that appears when defilement is removed is not a change in true thusness itself, only the removal of obscuration.

The unfolding of analytical cessation through five practice stages:

The stages of accumulation and preparation: hearing, thinking, and cultivating, accumulating the conditional circumstances for analytical cessation. Afflictions have not yet been truly eliminated, but seeds of right view are growing.

The path of seeing: non-discriminating wisdom first appears, and the seeds of discriminatively arisen afflictions are instantly eliminated—"truly realizing the truth revealed by the two emptinesses, truly severing the discriminatively arisen latencies of the two barriers."⁷⁶ This is the first "manifestation" of analytical cessation in the practitioner's mind.

The path of cultivation: gradual cultivation through the ten grounds, progressively eliminating the seeds of innately arisen afflictions. From the first ground to the Vajra Path, analytical cessation gradually becomes complete at different levels.

The ultimate stage: the afflictive and cognitive barriers permanently severed, analytical cessation fully manifest—great nirvāṇa.

✅ Core thesis: Analytical cessation is the unconditioned dharma most directly relevant to practice—through prajñā-wisdom's permanent destruction of affliction seeds, the intrinsic freedom-from-bondage of true thusness is revealed.

3.4 Non-Analytical Cessation — Non-Arising through Absence of Conditions

Non-analytical cessation (apratisaṃkhyā-nirodha) is the unconditioned state in which "dharmas naturally do not arise because conditions are insufficient—not through the analytical function of wisdom."

The Vyākhyā defines it: "Non-analytical cessation means cessation that is not liberation, which does not permanently destroy latent afflictions."⁷⁷ The key lies in "not liberation" and "not permanently destroying latent afflictions": the "non-arising" of non-analytical cessation is not because afflictions have been permanently eliminated but because the conditions necessary for manifestation are temporarily absent. When conditions come together, dharmas may still arise.

This contrasts sharply with analytical cessation: analytical cessation is permanent (seeds destroyed, never to return); non-analytical cessation is temporary (conditions lacking, temporarily quiescent). Analytical cessation is active (wisdom as antidote); non-analytical cessation is passive (conditions naturally absent).

Yet non-analytical cessation is not without significance for practice. It reveals an important strategic dimension: beyond directly counteracting afflictions with wisdom (the analytical cessation path), one can also actively manage conditions so that the circumstances for defiled manifestation are absent (the non-analytical cessation path). In daily practice this means: arranging the practice environment to reduce external stimuli for distraction; choosing virtuous teachers and practice communities to increase conditions for wholesome dharmas; establishing regular practice habits so that conditions for distraction and laziness naturally diminish.

The caveat: non-analytical cessation is not the ultimate goal. Non-arising due to absent conditions means that when conditions return, arising may resume—the seeds remain, only lacking conditions for active manifestation. True liberation requires analytical cessation—permanent severance at the seed level. Non-analytical cessation is a supportive method, not the final achievement.

3.5 The Unconditioned of Immovability and the Cessation of Perception and Feeling — True Thusness Revealed in Meditative Absorption

The unconditioned of immovability (āniñjya) and the cessation of perception and feeling (saṃjñā-vedita-nirodha) are unconditioned states revealed during deep meditative practice; both belong to the truth of cessation.⁷⁸

The unconditioned of immovability: the Vyākhyā defines it as "having abandoned desire for the purity realm but not yet abandoned desire for higher realms—the unconditioned cessation of suffering and pleasure." In the fourth dhyāna and above, neither suffering nor pleasure manifests; the mind abides in an unshakeable state of equanimity. The Āgama's "attaining an immovable mind, directed toward the realization of the exhaustion of the outflows" is precisely the canonical description of this state.

But the unconditioned of immovability has its limits: it is an experience within meditative absorption that may regress upon exiting absorption; it is a temporary manifestation of the unconditioned, not permanent liberation. Non-Buddhists (and some practitioners) can easily lose their way here—mistaking the "immovability" of deep concentration for nirvāṇa, equating a meditative state with liberation.⁷⁹

The cessation of perception and feeling: the Vyākhyā defines it as the unconditioned state realized in the cessation attainment, where all impermanent mind and mental factors together with a portion of the permanent ones cease. S3-P12 has already established that the cessation attainment is a saintly achievement (not attainable by ordinary beings); the first six consciousnesses and the defiled portion of the seventh consciousness are stilled, but the eighth consciousness continues to maintain the body.

The difference between the cessation of perception and feeling and the unconditioned of immovability lies in depth: the unconditioned of immovability involves the cessation of suffering and pleasure (fourth dhyāna and above); the cessation of perception and feeling involves the cessation of perception and feeling themselves (the cessation attainment)—even the deepest layers of mental activity, "perception" and "feeling," come to a complete halt.

The Cheng Weishi Lun's argument establishes: in the cessation attainment, "consciousness does not leave the body"—the eighth consciousness remains. This means the cessation of perception and feeling is not a void state where "all consciousness has vanished" but a domain where, with the fundamental support of consciousness (the eighth consciousness) still operating, the cessation of all coarse mental activity reveals a dimension of the "unconditioned." Notably, the Buddha himself emerged from the cessation attainment before entering final nirvāṇa, rather than remaining within it—indicating a distinction between the cessation of perception and feeling and ultimate liberation.⁸⁰

✅ Core thesis: The unconditioned of immovability and the cessation of perception and feeling are temporary manifestations of true thusness in meditative absorption—not final liberation but important foundations for contemplating true thusness.

3.6 True Thusness Unconditioned — The Core of the Six Unconditioned Dharmas

The analysis of the six unconditioned dharmas up to this point reveals a structural panorama:

Space-like unconditioned: a designation of the absence of obstruction by form—the shallowest unconditioned concept. Non-analytical cessation: non-arising through absence of conditions—a temporary, passive unconditioned. The unconditioned of immovability: a meditative state of the cessation of suffering and pleasure—a temporary unconditioned within absorption. The cessation of perception and feeling: the state realized in the cessation attainment—the deepest absorption-revealed unconditioned. Analytical cessation: freedom from bondage through wisdom's elimination of afflictions—a permanent, practice-attained unconditioned. True thusness unconditioned: the real nature of all dharmas—the core and root of all unconditioned dharmas.

The first five each have their context: space-like describes spatial non-obstruction, analytical cessation describes practice-based liberation, non-analytical cessation describes the absence of conditions, the unconditioned of immovability describes the equanimity of deep absorption, and the cessation of perception and feeling describes the stilling of the cessation attainment. True thusness unconditioned does not describe any particular "state"—it is the "real nature" of all of these.

The Pañcaskandhaka defines true thusness as "dharma-nature, dharma-selflessness."⁸¹ The Samuccaya reveals its multiple facets through seven questions—selflessness, emptiness, signlessness, ultimate reality, supreme meaning, dharma-realm. The Yogācārabhūmi confirms that true thusness is "one flavor throughout all domains, without numerical distinctions."

The Cheng Weishi Lun's classification brings this panorama to full integration: among the six unconditioned dharmas, the first five are "provisionally established"—different meanings designated upon true thusness; the sixth, true thusness unconditioned, is the sole real nature—"the real nature of consciousness-only is none other than true thusness."

An analogy: true thusness is like white light; the first five unconditioned dharmas are like the different colors refracted when white light passes through different prisms. Space-like unconditioned is white light's manifestation at "the absence of form," analytical cessation is its manifestation at "the elimination of afflictions," the unconditioned of immovability and the cessation of perception and feeling are its manifestations in "deep absorption," and non-analytical cessation is its manifestation at "the absence of conditions." The colors are real (other-dependently existent), but white light is the source (the perfectly accomplished nature).

The Saṃdhinirmocana's teaching here comes full circle: "the equal true thusness of all dharmas"—not only "true thusness unconditioned" is true thusness, but the nature of all dharmas (including the first five unconditioned dharmas) is the same true thusness, equal and without differentiation. The six unconditioned dharmas are not six different "things" but the same true thusness manifesting in six different contexts.

✅ Core thesis: True thusness unconditioned is the core of the six unconditioned dharmas—the first five are provisionally established meanings upon true thusness; true thusness is the sole real nature of consciousness.

3.7 The Perfectly Accomplished Nature Is True Thusness — Revealed through the Two Emptinesses

Having unified the six unconditioned dharmas under the axis of true thusness, we must pursue the further question: what is true thusness itself?

Cheng Weishi Lun, fascicle 9, answers with "the perfectly accomplished nature"—the third of the three natures. The thoroughly imagined is false superimposition; the other-dependent is the arising and ceasing of conditions; the perfectly accomplished is the real nature of all dharmas revealed by the two emptinesses (person-emptiness and dharma-emptiness).

"Revealed by the two emptinesses"—these four characters are pivotal. True thusness is not an object that can be "found"; it is "revealed" through "emptiness" (the removal of the thoroughly imagined). You cannot "seize" true thusness, but you can remove what obscures it (the two self-grasping), and true thusness naturally becomes manifest.

But true thusness is not a world sealed off from conditioned dharmas. The Cheng Weishi Lun's most profound teaching is: transformation of the basis does not mean departing from the other-dependent to find the perfectly accomplished; it means turning away from the thoroughly imagined "upon" the other-dependent and turning toward the perfectly accomplished "within" the other-dependent. The three natures are three dimensions of the same dharma:

In a flower—the flower is a dependently arisen composite (other-dependent); grasping it as an independently real "my flower" is the thoroughly imagined; the nature of the flower is true thusness (perfectly accomplished).

In an affliction—the affliction is dependently arisen (other-dependent); grasping it as "the real 'I' suffering" is the thoroughly imagined; the nature of the affliction is also true thusness (perfectly accomplished).

In every dharma of the Hundred Dharmas—every dharma is a dependently arisen conditioned dharma; every dharma can be subject to false superimposition by the thoroughly imagined; and the real nature of every dharma is true thusness.

3.8 The Complete Arc of the Five Categories — From Consciousness to True Thusness

The complete arc of the five categories can now be surveyed. The thirteen papers of the S3 series have unfolded a trajectory from the conditioned to the unconditioned, from consciousness to true thusness:

First category: eight mind dharmas (P02–P06). The transforming structure of consciousness. Ālaya-vijñāna holds seeds; manas ceaselessly deliberates; the sixth consciousness discriminates; the first five consciousnesses engage objects directly. The eight consciousnesses are the core engine of the Hundred Dharmas—all dharmas are transformations of consciousness. The highest ontological density: possessing the self-nature of discernment.

Second category: fifty-one mental factors (P07–P10). The psychological content of consciousness's activity. The five universals are the engine's basic operation; the five object-specifics are functions under particular conditions; wholesome mental factors are pure fuel; afflictions and subsidiary afflictions are the defiled engine and its branches; the four indeterminates are the transmission. Mental factors arise with and correspond to mind; their ontological density is lower than that of mind dharmas.

Third category: eleven form dharmas (P11). The material aspect projected by consciousness. The five sense faculties and five sense objects are the image-portion (nimitta-bhāga) of consciousness's transformation; dharmas subsumed under the mental domain are forms independently constructed by mental consciousness. Form dharmas possess resistance, but are "initially only objects of cognition"—all form dharmas are the image-portion of consciousness. Ontological density decreases another level: "not as real within the other-dependent as the nature of consciousness."

Fourth category: twenty-four dissociated factors (P12). The conceptually designated aspect of consciousness's activity. Time, space, number, language, birth and death...the most "objective" cognitive frameworks, all "positionally designated." Lacking even resistance, they are the thinnest layer of conditioned dharmas.

Fifth category: six unconditioned dharmas (P13). The real nature of consciousness. After traversing the complete structure of conditioned dharmas across four categories, the Hundred Dharmas arrives at unconditioned dharmas—the non-arising and non-ceasing of true thusness. The six unconditioned dharmas are centered on true thusness; true thusness is the real nature of consciousness-only.

This arc has a profound internal logic: from the "most substantial" (the discernment of mind dharmas) to the "most insubstantial" (the positional designation of dissociated factors), the ontological density of conditioned dharmas progressively decreases. Yogācāra is not telling you how rich the world is but is step by step dismantling your grasping at the world. Are mind dharmas "real"? They are other-dependent. Are mental factors "real"? They arise with mind. Are form dharmas "real"? They are the image-portion of consciousness's transformation. Are dissociated factors "real"? They are not even image-portions, only designated concepts.

After traversing these four layers of "dismantling," you naturally ask: what then is "real"?

The answer is the fifth category—true thusness. But true thusness is not a new thing found "outside" conditioned dharmas. The Cheng Weishi Lun's classification has made this explicit: the six unconditioned dharmas do not depart from mind; the perfectly accomplished is within the other-dependent. True thusness has been there all along—in mind dharmas, in mental factors, in form dharmas, in dissociated factors. Every one of the Hundred Dharmas' one hundred dharmas has true thusness as its real nature.

The first sentence of the Hundred Dharmas Treatise is "all dharmas are without self" (the core thesis of S3-P01); the final position is the six unconditioned dharmas centered on true thusness. From "all dharmas are without self" to "the real nature of consciousness-only is none other than true thusness" are two faces of the same thesis: "all dharmas are without self" is the breaking (removing the thoroughly imagined two self-grasping); "the real nature of consciousness-only is none other than true thusness" is the revealing (manifesting the perfectly accomplished real nature of all dharmas). What is revealed after breaking through self-grasping is true thusness—the destination of the Hundred Dharmas.

But the word "destination" must be used carefully. The "roadmap" of the Hundred Dharmas is not linear—one does not have to finish the first four categories before "arriving" at the fifth. True thusness pervades all domains and at all stages ever abides in its nature. When a practitioner is understanding the first category of mind dharmas, the true thusness of mind dharmas is already there; when analyzing the fourth category of dissociated factors, the true thusness of designated concepts is also there. The journey of the Hundred Dharmas is not from this shore to that shore, but from "not knowing you are home" to "knowing you have always been home."

The next step for the S3 series—and its final step—is S3-P14, "Transformation into Wisdom: Coming Home." P13 has arrived at "home" (true thusness); P14 will answer: how to move from knowing (the wisdom of hearing and reflection) to realization (non-discriminating wisdom), from the knowledge-map of the Hundred Dharmas to the living awakening of the four wisdoms fully luminous. The Hundred Dharmas begins with "all dharmas are without self" (P01), arrives at "the real nature of consciousness-only is none other than true thusness" (P13), and comes home through "the transformation of consciousness into wisdom" (P14). The entire S3 series is the complete unfolding and return of this single sentence.

IV. Cross-Disciplinary Resonances

4.1 True Thusness and Kant's Ding an sich — The Watershed of Realizability ⚠️

Immanuel Kant (1724–1804) distinguished in the Critique of Pure Reason between "appearance" (Erscheinung) and "thing in itself" (Ding an sich): humans can cognize only appearances; the thing in itself exceeds cognitive capacity.⁸² Yogācāra true thusness appears to have a structural parallel with the thing in itself: the other-dependent (phenomenal realm) vs. the perfectly accomplished (thing in itself).

But the watershed lies in "realizability": Kant's thing in itself can theoretically be posited but can never be cognized; Yogācāra true thusness can be directly realized—on the path of seeing, one "truly realizes the truth revealed by the two emptinesses." Self-realized noble wisdom (pratyātma-jñāna) is the central teaching of the Laṅkāvatāra: "attaining the wholesome bliss of self-realized noble wisdom" is not theoretical inference but practice realization.

This difference reveals a fundamental divergence between Buddhist epistemology and Western epistemology: Western philosophy (at least in the Kantian tradition) presupposes a subject-object dualistic cognitive structure in which the subject can never "jump out" of itself to cognize the thing in itself; the Buddhist practice path, through transformation of the basis—from consciousness to wisdom—transcends subject-object duality. Non-discriminating wisdom is not "a subject cognizing an object" but direct insight in which the duality of perceiver and perceived dissolves.

⚠️ Heuristic analogy: true thusness and the thing in itself share a parallel in structural position (the real nature beyond phenomena) but differ fundamentally in knowability.

4.2 The Perfectly Accomplished Nature and Heidegger's Truth as Unconcealment ⚠️

Martin Heidegger's (1889–1976) conception of truth centers on "unconcealment" (Unverborgenheit / ἀλήθεια): truth is not propositional correctness but the process of beings emerging from concealment.⁸³

Yogācāra analytical cessation—removing afflictive obscuration through wisdom to reveal intrinsic true thusness—resonates structurally with Heidegger's "unconcealment." Cheng Weishi Lun fascicle 9's "although thusness is intrinsically pure, its appearance is defiled; when defilement is removed, purity is provisionally spoken of as 'new'" can almost be read as a description of "unconcealment": true thusness (the truth of being) has always been present; it was only covered by defilement (concealment); the removal of defilement (unconcealment) reveals its purity.

But the difference remains important: Heidegger's "unconcealment" is a process that can never be completed (every disclosure simultaneously entails new concealment), while the Yogācāra ultimate stage can be reached—"after the Vajra Path, the karmic fruit is emptied"; the two barriers are permanently severed and analytical cessation is complete. Heidegger preserves finitude (Endlichkeit) as essential to Dasein; Buddhist practice aims at the transcendence of finitude.

⚠️ Heuristic analogy: analytical cessation's "removing obscuration to reveal true thusness" resonates structurally with Heidegger's "unconcealment," but the Buddhist path permits the possibility of "ultimate unconcealment."

4.3 The Six Unconditioned Dharmas and Axiomatic Systems in Mathematics ⚠️

Axiomatic systems in mathematics have an interesting structural feature: axioms themselves are underivable (they do not depend on other propositions), yet all theorems are derived from axioms. Axioms are the "unmoving foundation"; theorems are the "variable derivations."

True thusness unconditioned among the six unconditioned dharmas has a structural parallel with axioms: true thusness is "not fabricated" (asaṃskṛta), and all conditioned dharmas "depend on" true thusness for their real nature. True thusness is not derived from conditioned dharmas—"the perfectly accomplished nature has no basis and no support"—it is self-sufficient. But the real nature of all conditioned dharmas is true thusness—without true thusness, conditioned dharmas would have no "real nature."

The first five unconditioned dharmas resemble the application of axioms in different theorem systems: the same true thusness (axiom), manifested as space-like unconditioned in the context of "absence of form," as analytical cessation in the context of "wisdom's elimination of afflictions," and as the unconditioned of immovability and the cessation of perception and feeling in the context of "meditative stilling"—just as the same axiom set finds different applications in different branches of mathematics.

⚠️ Heuristic analogy: the axiom's "underivability" and "foundation for all derivations" parallel true thusness's "not being fabricated" and "being the real nature of all dharmas"—but mathematical axioms are human conventions, while true thusness is the real nature realized through practice.

V. Middle Way Corrections

❌ Correction 1: Unconditioned ≠ Doing Nothing

The literal meaning of "unconditioned" (wú wéi 無為) can easily be misunderstood as "non-action." In everyday Chinese, "governing through non-action" (wú wéi ér zhì) means non-intervention, letting things take their natural course. But the Buddhist "unconditioned" (asaṃskṛta) means "not fabricated"—the real nature of all dharmas that does not arise or cease with conditions—and has nothing to do with "non-action."

Quite the opposite: the path to unconditioned dharmas requires enormous practice effort—the three wisdoms of hearing, thinking, and cultivating; the six perfections; progressive cultivation through the ten grounds. The Āgamas explicitly identify the "path-trace of the unconditioned" as the Noble Eightfold Path—every factor of which requires active practice. "Unconditioned" is the goal of practice, not its method—the method is precisely the most active "conditioned" effort.

❌ Correction 2: True Thusness ≠ An Entity Independent of Consciousness

A common misunderstanding is to conceive true thusness as an "absolute truth" existing independently outside consciousness—like Plato's "realm of Forms." The Cheng Weishi Lun's classification explicitly rejects this: the six unconditioned dharmas "do not depart from mind"; "provisionally established upon true thusness as having the meaning of space" belongs to the perfectly accomplished. True thusness is not something separate from consciousness—"the real nature of consciousness-only is none other than true thusness" states plainly that true thusness is the real nature of consciousness, not a separate world outside it.

If true thusness is understood as an independent entity, one has fallen into dharma-self-grasping—replacing "soul" or "Brahman" with "true thusness" while essentially still grasping at an eternal, unchanging, truly existent thing. Yogācāra true thusness is "the perfectly accomplished nature"—the real nature of all dharmas revealed by removing the thoroughly imagined from the other-dependent—not an object that can be "seized."

❌ Correction 3: Six Unconditioned Dharmas ≠ Six Independent Unconditioned Entities

The Hundred Dharmas Treatise's listing of six unconditioned dharmas can be misunderstood as there being six different unconditioned "things" existing independently. But the Samuccaya and Vyākhyā have stated explicitly: "True thusness is provisionally established as three by analytical division, not by virtue of its own nature"—the classification of true thusness is a provisional designation, not a difference in true thusness's own nature.

The Cheng Weishi Lun fascicle 8's three-nature classification is even more thorough: all six unconditioned dharmas can be classified under the three natures; the first five are "provisionally established" upon true thusness. The six dharmas are not six independent entities but the same true thusness manifesting in different contexts—like the same mirror reflecting different light from different angles.

The practice implication of this correction: do not "chase" different unconditioned states in practice. The deep absorption of immovability is beautiful, but it is only true thusness manifesting within absorption; the stilling of the cessation of perception and feeling is profound, but it too is only true thusness manifesting in the cessation attainment. True thusness is always present—no special state is needed to "find" it; what is needed is only the removal of obscuration (the thoroughly imagined).

❌ Correction 4: Understanding Unconditioned Dharma Doctrine ≠ Realizing Unconditioned Dharmas

Every paper in this series operates within the domain of "the wisdom of hearing and reflection." Understanding the doctrinal analysis of the six unconditioned dharmas—grasping the definition of true thusness, discerning the hierarchy of the six—is not the same as realizing unconditioned dharmas. Between "knowing" and "realizing" lies a fundamental gap: knowing is the sixth consciousness's discriminative understanding; realizing is the direct experience of non-discriminating wisdom.

Cheng Weishi Lun, fascicle 9, describes the path of seeing as "truly realizing the truth revealed by the two emptinesses"—"truly realizing" is not "understanding." Reading a hundred books about swimming is not the same as knowing how to swim. This series of academic papers is a swimming textbook—it can tell you the physics of water, the principles of buoyancy, and the techniques of the stroke, but you must jump into the water yourself.

S3-P14, "Transformation into Wisdom," will further address the practice path from "knowing" to "realizing."

VI. Conclusion

The Hundred Dharmas Treatise unfolds the complete map of "all dharmas are without self" through five categories of one hundred dharmas. This paper has demonstrated the doctrinal structure and practice implications of the six unconditioned dharmas in the fifth category. The core conclusions are as follows.

First, the six unconditioned dharmas are centered on true thusness. Space-like unconditioned is a designation of the absence of form-obstruction; analytical cessation is the freedom from bondage revealed by prajñā's elimination of afflictions; non-analytical cessation is the temporary non-arising due to absent conditions; the unconditioned of immovability and the cessation of perception and feeling are true thusness manifested through meditative absorption; and true thusness unconditioned is the core and root of all unconditioned dharmas. The first five are provisionally established meanings upon true thusness; true thusness is the sole real nature of consciousness.

Second, the real nature of consciousness-only is none other than true thusness. The verse from Cheng Weishi Lun, fascicle 9—"ever abiding in its nature, it is the real nature of consciousness-only"—anchors the ultimate destination of the Hundred Dharmas: all dharmas are transformations of consciousness (consciousness-only), and the real nature of consciousness is true thusness (real nature). True thusness is not a separate world outside consciousness but the real nature of consciousness itself—"at all times, the dharma-nature of all dharmas abides, unconditioned."

Third, the complete arc of the five categories constitutes a practice roadmap. From the transforming capacity of mind dharmas to the operations of mental factors, from the projection of form dharmas to the designation of dissociated factors, the ontological density of conditioned dharmas progressively decreases. After traversing the complete structure of conditioned dharmas, the Hundred Dharmas arrives at unconditioned dharmas—the real nature of consciousness—true thusness. But "arriving" is not "departing"—true thusness has always been within every dharma. The journey of the Hundred Dharmas is not from this shore to that shore, but from "not knowing you are home" to "knowing you have always been home."

Fourth, "all dharmas are without self" and "the real nature of consciousness-only is none other than true thusness" are two faces of the same thesis. "All dharmas are without self" is the breaking—removing the thoroughly imagined two self-grasping; "the real nature of consciousness-only is none other than true thusness" is the revealing—manifesting the perfectly accomplished nature revealed by the two emptinesses. What is revealed after the breaking is true thusness. The Hundred Dharmas begins with "all dharmas are without self" in P01 and concludes with "the real nature of consciousness-only is none other than true thusness" in P13—this is the complete message of the Hundred Dharmas Treatise.

The automobile analogy reaches its conclusion here: you have driven the entire journey of the Hundred Dharmas—the driver (mind dharmas), the driving mindset (mental factors), the road and scenery (form dharmas), the map and timetable (dissociated factors)—and finally discovered that the place you were trying to reach is the place you have always been. The car is still there, the road is still there, the scenery is still there, but you are no longer lost—you know you are home.

The next step takes us to the final paper of the S3 series—S3-P14, "Transformation into Wisdom: Coming Home"—which will explore the ultimate destination of the Hundred Dharmas. If P13 tells you where "home" (true thusness) is, P14 tells you how to truly come home. The four wisdoms fully luminous, the five stages of practice, the direct realization of the two selflessnesses—from knowing "all dharmas are without self" to living "all dharmas are without self," from reading the map of the Hundred Dharmas to no longer needing the map. The S3 series opens with "all dharmas are without self" and comes home through "transformation into wisdom"—the entire series is the complete journey from departure to homecoming.

References

I. Primary Buddhist Sources

Saṃyuktāgama (雜阿含經). Translated by Guṇabhadra. Taishō vol. 2, No. 0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗. Madhyamāgama (中阿含經). Translated by Gautama Saṃghadeva. Taishō vol. 1, No. 0026《中阿含經》MadhyamāgamaT1, No. 26View on CBETA online reader ↗. Ekottarāgama (別譯雜阿含經). Translator unknown. Taishō vol. 2, No. 0100《別譯雜阿含經》T2, No. 100View on CBETA online reader ↗. Mahāparinirvāṇa Sūtra (大般涅槃經). Translated by Faxian. Taishō vol. 1, No. 0007《大般涅槃經》Mahāparinirvāṇa-sūtra (Faxian tr.)T1, No. 7View on CBETA online reader ↗. Prajñāpāramitā Hṛdaya Sūtra (般若心經). Translated by Xuanzang. Taishō vol. 8, No. 0251《般若波羅蜜多心經》Prajñāpāramitā-hṛdayaT8, No. 251View on CBETA online reader ↗Waken translation→. Mahāprajñāpāramitā Sūtra (大般若波羅蜜多經). Translated by Xuanzang. Taishō vols. 5–7, No. 0220. Saṃdhinirmocana Sūtra (解深密經). Translated by Xuanzang. Taishō vol. 16, No. 0676《解深密經》Saṃdhinirmocana-sūtraT16, No. 676View on CBETA online reader ↗. Śūraṅgama Sūtra (楞嚴經). Translated by Pāramiti. Taishō vol. 19, No. 0945《大佛頂首楞嚴經》Śūraṅgama-sūtra (Chinese)T19, No. 945View on CBETA online reader ↗. Laṅkāvatāra Sūtra (入楞伽經). Translated by Bodhiruci. Taishō vol. 16, No. 0671《入楞伽經》(十卷楞伽)Laṅkāvatāra-sūtra (10-fascicle)T16, No. 671View on CBETA online reader ↗. Laṅkāvatāra Sūtra (楞伽阿跋多羅寶經). Translated by Guṇabhadra. Taishō vol. 16, No. 0670《楞伽阿跋多羅寶經》(四卷楞伽)Laṅkāvatāra-sūtra (4-fascicle)T16, No. 670View on CBETA online reader ↗. Ghanavyūha Sūtra (大乘密嚴經). Translated by Divākara. Taishō vol. 16, No. 0682《大乘密嚴經》(不空譯)Ghana-vyūha-sūtraT16, No. 682View on CBETA online reader ↗. Avataṃsaka Sūtra (大方廣佛華嚴經, 80-fascicle). Translated by Śikṣānanda. Taishō vol. 10, No. 0279《大方廣佛華嚴經》(八十華嚴)Avataṃsaka-sūtra (80-fascicle)T10, No. 279View on CBETA online reader ↗. Śatadharmaprakāśamukha-śāstra (百法明門論). By Vasubandhu. Translated by Xuanzang. Taishō vol. 31, No. 1614《大乘百法明門論》T31, No. 1614View on CBETA online reader ↗Waken translation→. Cheng Weishi Lun (成唯識論). By Dharmapāla et al. Translated by Xuanzang. Taishō vol. 31, No. 1585《成唯識論》Vijñaptimātratā-siddhi-śāstraT31, No. 1585View on CBETA online reader ↗. Yogācārabhūmi-śāstra (瑜伽師地論). By Maitreya. Translated by Xuanzang. Taishō vol. 30, No. 1579《瑜伽師地論》Yogācārabhūmi-śāstraT30, No. 1579View on CBETA online reader ↗. Pañcaskandhaka-prakaraṇa (大乘五蘊論). By Vasubandhu. Translated by Xuanzang. Taishō vol. 31, No. 1612《大乘五蘊論》Pañcaskandha-prakaraṇaT31, No. 1612View on CBETA online reader ↗. Abhidharma-samuccaya (大乘阿毘達磨集論). By Asaṅga. Translated by Xuanzang. Taishō vol. 31, No. 1605《大乘阿毘達磨集論》AbhidharmasamuccayaT31, No. 1605View on CBETA online reader ↗. Abhidharma-samuccaya-vyākhyā (大乘阿毘達磨雜集論). Compiled by Sthiramati. Translated by Xuanzang. Taishō vol. 31, No. 1606《大乘阿毘達磨雜集論》Abhidharmasamuccaya-vyākhyāT31, No. 1606View on CBETA online reader ↗. Mahāyāna-saṃgraha (攝大乘論). By Asaṅga. Translated by Paramārtha. Taishō vol. 31, No. 1593《攝大乘論》Mahāyāna-saṃgrahaT31, No. 1593View on CBETA online reader ↗. Mahāprajñāpāramitā-śāstra (大智度論). By Nāgārjuna. Translated by Kumārajīva. Taishō vol. 25, No. 1509《大智度論》Mahāprajñāpāramitā-upadeśa-śāstraT25, No. 1509View on CBETA online reader ↗. Mahāprajñāpāramitā-śāstra (大智度論). By Nāgārjuna. Translated by Kumārajīva. Taishō vol. 25, No. 1509《大智度論》Mahāprajñāpāramitā-upadeśa-śāstraT25, No. 1509View on CBETA online reader ↗. Bā Shí Guī Jǔ Bǔ Zhù (八識規矩補註). Annotated by Putai. Taishō vol. 45, No. 1865《八識規矩補註》T45, No. 1865View on CBETA online reader ↗. Cheng Weishi Lun Shuji (成唯識論述記). By Kuiji. Taishō vol. 43, No. 1830《成唯識論述記》T43, No. 1830View on CBETA online reader ↗. Commentary on the Huayan Dharma-Realm Contemplation Gate (注華嚴法界觀門). By Zongmi. Taishō vol. 45, No. 1884《註華嚴法界觀門》T45, No. 1884View on CBETA online reader ↗. Huayan Dharma-Realm Dark Mirror (華嚴法界玄鏡). By Chengguan. Taishō vol. 45, No. 1883《華嚴法界玄鏡》T45, No. 1883View on CBETA online reader ↗. Huayan Essay on Generating the Bodhi-Mind (華嚴發菩提心章). By Fazang. Taishō vol. 45, No. 1878《華嚴發菩提心章》T45, No. 1878View on CBETA online reader ↗.

II. Modern Scholarship

Kant, Immanuel. Critique of Pure Reason. Translated by Paul Guyer and Allen W. Wood. Cambridge University Press, 1998.

Heidegger, Martin. "On the Essence of Truth." Translated by John Sallis, in Pathmarks, edited by William McNeill, 136–154. Cambridge University Press, 1998.

Lusthaus, Dan. Buddhist Phenomenology: A Philosophical Investigation of Yogācāra Buddhism and the Ch'eng Wei-shih Lun. Routledge, 2002.

III. Sūtra & Śāstra Index

Cross-Reference Index

Footnotes

All sūtra and śāstra citations in this paper have been verified against the CBETA Chinese Electronic Tripiṭaka Collection. Licensed under CC BY-NC-SA 4.0 · 指月 Pointing at the Moon GitHub: pointing-at-the-moon/dharma-research