All Conditioned Phenomena Are Like Dreams and Illusions

I. Introduction: From Particular Negation to All Dharmas as Illusory

S5-P08 demonstrated the Diamond Sūtra's sharpest cut: even the Buddha's thirty-two excellent marks cannot serve as a basis for seeing the Tathāgata. The reductio of §26 negated the attempt to see the Tathāgata through specific marks. Yet the Diamond Sūtra does not stop at particular negation. §32, the sūtra's final teaching passage, expands the scope of negation from one specific type of "mark" to "all conditioned phenomena":

「一切有為法，如夢、幻、泡、影，如露亦如電，應作如是觀。」

"All conditioned phenomena are like dreams, illusions, bubbles, shadows, like dew and like lightning — one should contemplate them thus."¹

From P08 to P09 is the leap from particular negation to universal negation. P08 says: you cannot see the Tathāgata through the thirty-two marks. P09 says: all conditioned phenomena — including the thirty-two marks, including your negation of the thirty-two marks, including the very process of reading this sūtra — are like dreams, illusions, bubbles, and shadows.

This is the Diamond Sūtra's final cut, and also its most easily misread.

"All conditioned phenomena are like dreams, illusions, bubbles, and shadows" — for most readers, the first thought that arises upon reading this is: "So everything is fake, nothing matters." This thought is precisely one of the core attachments that the entire Diamond Sūtra aims to dismantle — annihilationism (ucchedavāda). The six similes negate not the existence of conditioned phenomena, but your reification of them. This distinction is the central argument of the present paper.

Master Zongmi states directly in the Jingang bore jing shu lun zuanyao (T1701):

「一切有為法者，一切世間生滅之法也……無常之法虛假不實，故以夢、幻、泡、影、露、電六種為喻。應作如是觀者，觀即般若妙智，以此妙智觀有為法如夢幻等。」

"'All conditioned phenomena' refers to all worldly dharmas of arising and ceasing... Impermanent dharmas are empty and insubstantial, hence six similes — dream, illusion, bubble, shadow, dew, lightning — are employed. 'One should contemplate thus' — contemplation here is the wondrous wisdom of prajñā; with this wondrous wisdom one contemplates conditioned dharmas as being like dreams and illusions."²

Zongmi's phrase "contemplation is the wondrous wisdom of prajñā" makes clear: the essential point of the six similes lies not in the knowledge-proposition "everything is illusory" but in the contemplative instruction "one should contemplate thus." You do not need to know that conditioned phenomena are illusory — you need to contemplate them as illusory. The difference between knowing and contemplating is precisely the knowledge/realization distinction established in S5-P02 (The Kōan Mirror).

Within the S5 series, P09 serves a threefold closure function.

First, it is the summation of P03's "all marks are illusory." P03 dismantled "marks" (the surface appearances of particular phenomena); P09 dismantles "all conditioned phenomena" (everything that arises through causes and conditions). From particular to universal, from dismantling appearances to dismantling dharmas.

Second, it is the terminus of the merit-comparison escalation arc. S5-P05 analyzed how the Diamond Sūtra's merit comparisons escalate step by step (§4→§8→§11→§15→§24→§28→§32). The gift-giving comparison of §32 is the sūtra's largest — "filling immeasurable asaṃkhyeya worlds with seven treasures for giving" — yet the conclusion remains the same: upholding the sūtra surpasses material giving. The six similes provide the ultimate answer to this repeated question: why does sūtra-upholding surpass seven-treasure giving? Because all conditioned phenomena are like dreams and illusions — the seven treasures are conditioned, giving itself is conditioned, and only prajñā contemplation ("one should contemplate thus") transcends the conditioned.

Third, it is the final station in P07's dual-layer structure. §32 sits at the end of the second half — in P07's analysis, the second half targets the cognitive obscuration (jñeyāvaraṇa), dharma-attachment. The six similes cut not merely your attachment to worldly dharmas but your attachment to the Buddha-dharma itself: "all conditioned phenomena" includes every skillful means provisionally established within the teaching.

Vasubandhu positions §32 as the final doubt in the sūtra's doubt-resolution chain in the Jingang bore boluomi jing lun (T1511):

「復有疑，若諸佛如來常為眾生說法，云何言如來入涅槃？」

"A further doubt arises: if all buddhas and tathāgatas constantly teach the dharma for sentient beings, how can it be said that the Tathāgata enters nirvāṇa?"³

The six similes respond to this doubt — not with logical argument but with contemplative redirection: the Tathāgata's nirvāṇa is itself an aspect within conditioned phenomena; contemplate all conditioned dharmas as illusory, and you will understand that "teaching dharma all day long is nirvāṇa all day long."⁴

The following sections unfold the complete Yogācāra reading of the six similes. §II presents the scriptural foundations, §III develops the core arguments, §IV offers cross-disciplinary parallels, §V mounts a full defense against annihilationism, and §VI closes the arc of the entire S5 series.

II. Scriptural Foundations

2.1 The Six Similes Verse of §32: Three Translations Compared

The six-simile verse in Kumārajīva's translation (T0235) is the most widely circulated version in East Asian Buddhism:

"All conditioned phenomena are like dreams, illusions, bubbles, shadows, like dew and like lightning — one should contemplate them thus."¹

However, the Sanskrit original and other Chinese translations all contain nine similes. Bodhiruci (T0236a) and Yijing (T0239) both render:

「一切有為法，如星、翳、燈、幻，露、泡、夢、電、雲，應作如是觀。」

"All conditioned phenomena are like stars, cataracts, lamps, illusions, dew, bubbles, dreams, lightning, and clouds — one should contemplate them thus."⁵

The discrepancy between six and nine is not a translation error. Zongmi explains why Kumārajīva translated only six: "Stars and lamps possess substance; clouds contain the seeds of rain-life. These risk obstructing the empty mind and surreptitiously nourishing attachment to marks — the meaning-based translation achieves its marvel precisely here."⁶ Stars (with a fixed luminous body), lamps (with a fuel-base), and clouds (harboring rain and life-potential) — these three "possess substance" and "contain life," easily prompting readers to imagine substantial existence and thus reinforce attachment. Kumārajīva deleted these three, retaining the six similes most effective at directly pointing to "insubstantiality" and "impermanence." This is not reduction — it is a prajñā-guided translation decision.

2.2 The Complete Teaching Context of §32

The six-simile verse is not an isolated coda. It is embedded within the complete teaching passage of §32, which unfolds in five layers.

The first layer: a dense deployment of the jífēi formula. "Assemblages of atoms — they are not assemblages of atoms — they are called assemblages of atoms"; "worlds — they are not worlds — they are called worlds"; "a unified composite — it is not a unified composite — it is called a unified composite" — §32 deploys the jífēi formula three times in rapid succession (the S5-P01 framework), pushing the reader's familiarity with the structure to its extremity.⁷

The second layer: the final jífēi-ization of the four views. "Self-view, person-view, sentient-being-view, life-span-view — these are not self-view, person-view, sentient-being-view, life-span-view — they are called self-view, person-view, sentient-being-view, life-span-view" — even "views" themselves are subjected to the jífēi formula.⁸

The third layer: the sūtra's largest merit comparison. "If a person were to fill immeasurable asaṃkhyeya worlds with seven treasures and use them for giving..." — this is the apex of the escalation arc, with the scale of giving breaching the great trichiliocosm and expanding to "immeasurable asaṃkhyeya worlds."⁹

The fourth layer: the six-simile verse. After the merit comparison, the Buddha provides no further logical explanation of why sūtra-upholding surpasses giving — instead he simply delivers the six similes as the sūtra's final teaching.

The fifth layer: "When the Buddha had spoken this sūtra... all were greatly delighted, believed, received, and practiced it" — the Diamond Sūtra concludes.¹⁰

This five-layer structure reveals that the six similes are not an appendix-style epilogue but the final step of the sūtra's teaching — delivered after the jífēi formulas (layer one), the jífēi-ization of the four views (layer two), and the merit comparison (layer three) have all been completed. The Buddha entrusts the six similes as his ultimate contemplative instruction.

2.3 The Simile System of the Prajñā Tradition

The Diamond Sūtra's six similes are not an isolated invention but a curated compression of the prajñā tradition's simile system.

The Mahāprajñāpāramitā Sūtra (T0223) gives ten similes:

「解了諸法如幻、如焰、如水中月、如虛空、如響、如犍闥婆城、如夢、如影、如鏡中像、如化。」

"Understanding all dharmas as being like illusions, mirages, reflections in water, empty space, echoes, phantom cities, dreams, shadows, mirror-images, and magical transformations."¹¹

Nāgārjuna explains in the Mahāprajñāpāramitā-śāstra (T1509) why these ten rather than "mountains, rivers, stones, and walls" are chosen as similes:

「諸法雖空而有分別，有難解空，有易解空。今以易解空喻難解空。復次，諸法有二種：有心著處，有心不著處。以心不著處解心著處。是十事不久住，易生易滅故，以是故，是心不著處。」

"Although all dharmas are empty, there are distinctions: some are difficult to understand as empty, some easy. Now easy-to-understand emptiness is used to illuminate hard-to-understand emptiness. Moreover, dharmas are of two kinds: those to which the mind attaches, and those to which the mind does not attach. Those where the mind does not attach are used to illuminate those where it does. These ten things do not endure long — they arise and perish easily — and therefore the mind does not attach to them."¹²

This passage is of paramount importance. Nāgārjuna identifies the selection logic of the ten similes as contemplative rather than literary. All ten are things that "do not endure long, arise and perish easily" — the mind does not naturally cling to dreams, illusions, bubbles, or shadows. By using what you already know to be illusory to illuminate what you do not yet see as illusory — this is the contemplative logic of the similes.

Nāgārjuna further invokes the Devī Sūtra to elucidate the deeper meaning of "like illusion":

"Although the characteristics of all dharmas are empty, ordinary beings, ignorant and unlearned, give rise to various afflictions within them... Like an illusionist conjuring various things... This simile of illusion shows sentient beings that all conditioned dharmas are empty and insubstantial."¹³

In the same treatise, Nāgārjuna uses the "like a magical transformation" simile to reveal the key structure of illusory existence:

「如化事雖實空，能令眾生生憂苦、瞋恚、喜樂、癡惑；諸法亦如是，雖空無實，能令眾生起歡喜、瞋恚、憂怖等。」

"Although magical transformations are truly empty, they can cause sentient beings to give rise to sorrow, anger, joy, and delusion; all dharmas are likewise — although empty and insubstantial, they can cause sentient beings to give rise to happiness, anger, worry, and fear."¹⁴

"Although empty and insubstantial, they cause sentient beings to give rise to happiness and anger" — this is the precise definition of illusory existence: not substantially real, yet genuinely producing effects. Nāgārjuna here already touches the Middle Way of "empty yet not nothing"; the Cheng weishi lun would later systematize this insight as "seemingly existent yet non-existent" (fei you si you).

Nāgārjuna also reveals the Middle Way through the mirror-image simile:

"A mirror-image is not made by the mirror, not made by the face, not made by the one holding the mirror, not made of itself, and not without causes and conditions."¹⁵

His verse — "neither existent nor non-existent, nor both existent and non-existent; this statement too is not accepted — such is called the Middle Way"¹⁵ — directly foreshadows the core position of the present paper: illusory existence is neither substantially real nor nihilistically void.

The Mahāprajñāpāramitā Sūtra (T0220) explicitly connects the illusory-contemplation to the bodhisattva path:

「若諸有情於一切法能自了知皆如幻化、都非實有，則菩薩摩訶薩不應無數劫為諸有情行菩薩道。以諸有情於一切法自不能知皆如幻化、都非實有，是故菩薩摩訶薩於無數劫為諸有情行菩薩道。」

"If sentient beings could by themselves understand that all dharmas are like magical illusions and entirely not substantially real, then bodhisattva-mahāsattvas would not need to practice the bodhisattva path for immeasurable kalpas for their sake. Because sentient beings cannot by themselves know that all dharmas are like magical illusions and not substantially real — therefore bodhisattva-mahāsattvas practice the bodhisattva path for immeasurable kalpas for their sake."¹⁶

This passage is one of the most crucial keys to understanding the six similes: precisely because beings do not know that all dharmas are illusory, bodhisattvas must practice within the illusory. The illusory-contemplation is not the end of practice — it is the ground for practice.

2.4 The Laṅkāvatāra Sūtra: "Like Illusion" Equals Paratantra

The Laṅkāvatāra Sūtra provides the most direct scriptural evidence for the Yogācāra reading of the six similes. Śikṣānanda's Dasheng ru lengqie jing (T0672), fascicle six, defines the three natures in verse form, with the definition of paratantra as follows:

「如幻影陽焰，鏡像夢火輪；如響及乾城，是則依他起。」

"Like illusion, reflection, mirage, mirror-image, dream, fire-wheel; like echo and phantom city — these are paratantra (dependent arising)."¹⁷

This verse directly equates "like illusion" with the paratantra nature. The immediately preceding and following verses complete the trisvabhāva definition:

"Unborn and undying, its nature like empty space; self-nature having nothing whatsoever — this is called the imagined characteristic (parikalpita)." "Suchness, emptiness, non-duality, ultimate reality, and dharma-nature; all without differentiation — this I declare to be the perfected (pariniṣpanna)."¹⁷

Three verses in parallel: parikalpita = imagined nature with no self-nature; paratantra = illusory like reflections and mirages; pariniṣpanna = suchness without differentiation. When the Diamond Sūtra says "all conditioned phenomena are like dreams, illusions, bubbles, and shadows," through the Laṅkāvatāra's trisvabhāva framework, it precisely describes the existential status of the paratantra nature.

Guṇabhadra's translation (T0670) further unfolds the practice-path of the illusion-like samādhi:

「解三界如幻，分別觀察，當得如幻三昧。度自心現無所有，得住般若波羅蜜。」

"Understanding the three realms as illusory, analyzing and contemplating, one attains the illusion-like samādhi. Crossing over to where mind's projections are seen as having no existence, one abides in prajñāpāramitā."¹⁸

The illusion-like samādhi is not the cognitive state of "knowing everything is illusory" — it is a concrete samādhi attainment in which the practitioner, through contemplating all dharmas as illusory, crosses the threshold of "mind's projections seen as having no existence" and ultimately abides in prajñā. This aligns perfectly with the Diamond Sūtra's contemplative instruction, "one should contemplate them thus."

The Laṅkāvatāra guards the Middle Way with a pivotal verse:

「我常說空法，遠離於斷常，生死如幻夢，而彼業不壞。」

"I constantly teach the dharma of emptiness, far from annihilationism and eternalism; birth-and-death is like an illusory dream, yet karma therein is not destroyed."¹⁹

"Birth-and-death is like an illusory dream, yet karma therein is not destroyed" — birth and death are illusory, but karmic cause and effect are not annulled by their illusoriness. This is the most precise scriptural defense against annihilationism.

The Buddha further clarifies the exact meaning of "like illusion" in the Laṅkāvatāra:

「非種種幻相計著相似，一切法如幻。大慧！然不實一切法，速滅如電，是則如幻。」

"It is not that all dharmas are like illusion in the sense that various illusory marks are similar to attachment. Mahāmati! Rather, all dharmas are insubstantial and rapidly perish like lightning — that is what 'like illusion' means."²⁰

"Insubstantial" and "rapidly perishing" — these two characteristics correspond precisely to the Diamond Sūtra's two groups of similes: the first four (dream, illusion, bubble, shadow) reveal "insubstantiality"; the last two (dew, lightning) reveal "rapid perishing."

2.5 The Vimalakīrti Sūtra: Illusory-Contemplation Does Not Obstruct Great Compassion

The Vimalakīrti Nirdeśa Sūtra (T0475) extends the illusory-contemplation into the practical dimension of bodhisattva conduct. In the "Contemplating Sentient Beings" chapter, Mañjuśrī asks Vimalakīrti how to contemplate sentient beings:

"Like an illusionist beholding the people he has conjured... like a wise person seeing the moon in water, like seeing one's face in a mirror... A bodhisattva should thus contemplate sentient beings."²¹

In the chapter on "Seeing Akṣobhya Buddha":

「若一切法如幻相者，云何問言：汝於何沒而來生此？……菩薩雖沒，不盡善本；雖生，不長諸惡。」

"If all dharmas are of the nature of illusion, why do you ask 'where did you pass away from to be reborn here?' ... A bodhisattva, though passing away, does not exhaust the roots of goodness; though being reborn, does not increase evil."²²

"Though passing away, does not exhaust the roots of goodness; though being reborn, does not increase evil" — the illusory-contemplation does not obstruct the bodhisattva's compassionate conduct. The bodhisattva knows all dharmas to be illusory, yet continues to act within the illusory — not because of ignorance, but because knowing the illusory one still must act. This is the most easily overlooked dimension of the Diamond Sūtra's six similes: after "one should contemplate them thus," the bodhisattva does not withdraw from the world but practices the bodhisattva path within the world through the illusory-contemplation.

The Vimalakīrti Sūtra further describes the body with six similes that strongly parallel the Diamond Sūtra's:

「是身如幻，從顛倒起；是身如夢，為虛妄見；是身如影，從業緣現；是身如響，屬諸因緣；是身如浮雲，須臾變滅；是身如電，念念不住。」

"This body is like illusion, arising from perversion; this body is like a dream, being a false perception; this body is like a shadow, appearing from karmic conditions; this body is like an echo, belonging to causes and conditions; this body is like a floating cloud, changing and perishing in an instant; this body is like lightning, not abiding even for a thought-moment."²³

Illusion, dream, shadow, echo, cloud, lightning — Vimalakīrti's six similes overlap extensively with those of the Diamond Sūtra, pointing to the same contemplative tradition.

2.6 The Saṃdhinirmocana Sūtra: Three Natures and Three Non-Natures

The Saṃdhinirmocana Sūtra (T0676) provides the systematic framework for the trisvabhāva reading of the six similes. The "Characteristics of All Dharmas" chapter defines the three natures:

"Parikalpita — the provisionally established names and self-natures of all dharmas." "Paratantra — the arising-through-conditions nature of all dharmas: because this exists, that exists; because this arises, that arises." "Pariniṣpanna — the equal suchness of all dharmas."²⁴

The sūtra further matches three similes to the three non-natures:

"Like flowers in empty space — thus should one know the non-nature of characteristics. Like an illusory image — thus should one know the non-nature of arising. Like empty space — thus should one know the ultimate non-nature."²⁵

"Illusory image" directly maps to "the non-nature of arising" — the paratantra nature, though arising through conditions, is without self-nature in its very arising. This is the ontological status of the six similes: the arising of dependent phenomena is real (otherwise the simile "like illusion" would be unnecessary), but this arising has no independent self-nature — just as an illusion indeed appears, yet the illusion has no substance independent of the conditions that produce it.

More importantly, the Saṃdhinirmocana describes the illusory-contemplation from the perspective of the noble:

"Those who have seen the noble truths... regarding all conditioned and unconditioned dharmas, think thus: 'What is apprehended here is decidedly not real conditioned or unconditioned phenomena. Yet there are mental appearances arising from discrimination — like illusory events that delude the cognitive faculty.'"²⁶

The noble ones see conditioned dharmas as "like illusory events that delude the cognitive faculty" — this is not ordinary conceptual understanding but a state directly realized by noble wisdom. The "contemplation" in "one should contemplate thus" ultimately points to this noble wisdom.

2.7 The Cheng weishi lun: Seemingly Existent Yet Non-Existent

The Cheng weishi lun (T1585) defines the ontological status of the paratantra nature with four precise characters: fei you si you (非有似有, "seemingly existent yet non-existent"):

「心、心所及所變現，眾緣生故，如幻事等，非有、似有，誑惑愚夫，一切皆名依他起性。」

"Mind, mental factors, and their transformative manifestations — arising from multiple conditions, like illusory events, seemingly existent yet non-existent, deceiving the ignorant — all of these are called the paratantra nature."²⁷

"Seemingly existent yet non-existent" is the key to understanding the six similes. "Non-existent" — not the kind of substantial existence that parikalpita takes things to be; "seemingly existent" — indeed manifesting as existent through the confluence of causes and conditions. The Cheng weishi lun immediately elaborates with eight similes:

"Falsely manifesting like illusory events, mirages, dream-scenes, mirror-images, light-reflections, valley-echoes, water-moons, and magical transformations — seemingly existent yet non-existent."²⁷

And closes with a verse:

「非不見真如，而能了諸行，皆如幻事等，雖有而非真。」

"It is not without seeing suchness that one can comprehend all conditioned processes as being like illusory events — existent yet not truly real."²⁷

"It is not without seeing suchness that one can comprehend all processes" — you must first realize suchness (pariniṣpanna) through non-discriminating wisdom, and only then, in subsequently-attained wisdom (pṛṣṭha-labdha-jñāna), can you truly comprehend the paratantra nature as illusory:

"Only after non-discriminating wisdom has realized suchness can subsequently-attained wisdom fully comprehend the paratantra nature as being like illusory events."²⁸

This sequence is of utmost importance: one does not first "know" the illusory and then practice — rather, one first realizes suchness through non-discriminating wisdom, and then, in subsequently-attained wisdom, comes to truly comprehend dependent arising as illusory. The six similes' "one should contemplate thus" is not a "knowing" that can be accomplished through conceptual thinking — it is a "contemplation" that can only be truly realized through prajñā realization.

The Cheng weishi lun further positions illusory existence within the four-level two-truth framework:

"Ultimate truth has four levels: first, conventional ultimate — the aggregates, sense-bases, and elements; second, logical ultimate — the four noble truths of suffering, etc.; third, realized ultimate — the suchness of the two emptinesses; fourth, ultimate of ultimates — the single true dharma-realm." "There are also two natures: first, conventional — the paratantra; second, ultimate — the pariniṣpanna."²⁹

The paratantra belongs to conventional truth — at the conventional level it is existent (conventionally existent), at the ultimate level it is empty (ultimately empty). The six similes reveal precisely this two-truth structure: "like dreams, illusions, bubbles, and shadows" is viewing the paratantra from its ultimate aspect (empty), yet the paratantra itself is conventionally existent (conditioned dharmas do genuinely arise within conditions). Kuiji's Cheng weishi lun shuji (T1830) summarizes in a single sentence:

「遍計所執隨言說性不成實故非有，依他起離言說性實成立故非無。」

"Parikalpita, following the nature of language-convention, fails to be substantially real — hence non-existent. Paratantra, apart from linguistic convention, is genuinely established — hence not nothing."³⁰

2.8 Vasubandhu's Commentary: Nine Similes Mapped to Nine Domains

Vasubandhu maps the six similes (nine in the Sanskrit) to nine domains of conditioned existence in the Jingang bore boluomi jing lun (T1511):

「非有為非離，諸如來涅槃；九種有為法，妙智正觀故。」

"Neither conditioned nor apart from the conditioned is the nirvāṇa of all tathāgatas; the nine aspects of conditioned dharmas are rightly contemplated by wondrous wisdom."³¹

Vasubandhu's verse summarizes the nine domains:

"Seeing, characteristics, and consciousness; vessel-world, body, and experience; past dharmas, present dharmas, and also contemplating the future."³¹

The nine similes map one-to-one: star → seeing (existent yet imperceptible); cataract → characteristics (perceived through perversion); lamp → consciousness (sustained by craving); illusion → vessel-world (myriad differences without substance); dew → body (brief duration); bubble → experience (unstable); dream → past (existing only in memory); lightning → present (not abiding even a kṣaṇa); cloud → future (in the ālaya-vijñāna as seed-root of all dharmas).³²

Guṇadeva's Poqu zhu buhuai jiaming lun (T1515) groups the nine into three categories: star, cataract, lamp → "seeing, characteristics, consciousness" (intrinsic marks); illusion, dew, bubble → "vessel-world, body, experience" (marks of attachment to dwelling-flavor); dream, lightning, cloud → "past, present, future" (marks following toward liberation).³³

Vasubandhu explains the relationship between the Tathāgata's nirvāṇa and the six similes:

"The nirvāṇa of all buddhas is neither conditioned dharma nor apart from conditioned dharma. Why? Because all buddhas, having attained nirvāṇa, teach the dharma through their transformation-bodies, manifesting worldly conduct... This demonstrates that all buddhas neither dwell in nirvāṇa nor dwell in the world."³¹

"Neither conditioned nor apart" — the Tathāgata's nirvāṇa is neither limited by conditioned phenomena (not bound by arising-and-ceasing) nor separate from conditioned phenomena (teaching beings through transformation-bodies within arising-and-ceasing). To contemplate all conditioned phenomena as illusory is not to flee conditioned phenomena — it is to attain freedom within them. Vasubandhu's closing verse:

"Within conditioned dharmas, attaining stainless freedom."³⁴

2.9 Supplementary Commentarial Evidence

Kuiji's Jingang bore boluomi jing zanshu (T1700)

Kuiji analyzes §32 through Asaṅga's "non-defilement" and Vasubandhu's "doubt-resolution" frameworks:

"Asaṅga says: the second is non-defilement within cyclic existence — the nine similes demonstrate what cannot be spoken of. Vasubandhu says: the doubt is: 'If all buddhas constantly teach the dharma for beings, how can the Tathāgata enter nirvāṇa?' To resolve this doubt, the nine similes are established."³⁵

Asaṅga reads the six similes from the practice dimension (non-defilement); Vasubandhu reads them from the teaching dimension (doubt-resolution) — two readings of the same verse, complementary and non-contradictory.

Kuiji further glosses the four characters "like suchness, unmoving" (ruru budong):

"'Like suchness, unmoving' — the lower 'suchness' (ru) refers to true suchness (zhenru); the upper 'like' (ru) is a simile — meaning that when the transformation-body teaches the dharma, it does not grasp the marks of the conditioned, just as suchness is serene and unmoving."³⁵

This directly reconnects to P09's core thesis: the "like suchness, unmoving" after the six similes points to pariniṣpanna — after contemplating all conditioned phenomena as illusory, the state one abides in is the serene quiescence of suchness.

Zongmi's Jingang bore jing shu lun zuanyao (T1701) — The Progressive Doubt-Resolution Chain

Zongmi preserves an extremely important doubt-resolution chain revealing the layered progression among the similes:

"The Buddha teaches that all dharmas are empty. Doubt arises: 'How is it that I can clearly see all objects?' Hence the teaching 'like illusion'... Another doubt: 'If illusory dharmas are nothing, why do people become attached?' Hence 'like a mirage'... Another doubt: 'A thirsty deer never actually gets water — how do craving beings actually enjoy sense-pleasures?' Hence 'like a dream'... Another doubt: 'In dreams one does good and evil, yet upon waking there is no karmic retribution.' Hence 'like shadows and echoes'... Another doubt: 'If suffering is entirely unreal, why do bodhisattvas perform acts of benefit?' Hence 'like a transformation.'"³⁶

This chain reveals that the similes are not synonymous repetitions but layered responses to successive questions. Each "another doubt" is a follow-up that naturally arises after understanding the previous simile — from "everything is empty but I can see it" to "why would anyone become attached to nothing?" to "how do we explain actual enjoyment?" to "where does karmic retribution come in?" to "why do bodhisattvas bother acting?" — each simile responds in turn, culminating in "like a transformation": the bodhisattva knows all things to be insubstantial, yet still performs transformative deeds.

Zixuan's Jingang jing zuanyao kanding ji (T1702) — "Active Yet Serene, Serene Yet Active"

Zixuan captures the practice-significance of the six similes in eight characters:

「用而常寂、寂而常用，故終日說法終日涅槃。」

"Active yet perpetually serene, serene yet perpetually active — hence teaching dharma all day long is nirvāṇa all day long."³⁷

"Active yet serene" — functioning within conditioned phenomena (active), yet not bound by them (serene). "Serene yet active" — abiding in quiescent emptiness (serene), yet not departing from altruistic action within the conditioned (active). This is the practical fruit of the illusory-contemplation, and the ultimate aim of the six similes.

Guṇadeva's Poqu zhu buhuai jiaming lun (T1515) — The Sūtra's Final Closure

Guṇadeva closes his commentary on the nine similes with a passage that summarizes the entire sūtra's doctrinal import:

「九種有為如九種喻，作不實而觀。此有為法既不實如此，則本來寂滅。本來寂滅，則唯一真如。真如寂滅，即是涅槃。是故諸佛如來見世間即涅槃故，不同二乘厭背生死、樂住涅槃、不化眾生。見涅槃即世間故，不同凡夫眾生死而無厭，不求出世涅槃解脫之果也。」

"The nine kinds of conditioned dharmas are contemplated as insubstantial, like the nine similes. Since conditioned dharmas are insubstantial in this way, they are originally quiescent. Originally quiescent, they are nothing but the one suchness. Suchness, being quiescent, is nirvāṇa. Therefore all buddhas and tathāgatas see the world as nirvāṇa — unlike the two vehicles who turn away from birth-and-death and delight in abiding in nirvāṇa without transforming beings. They see nirvāṇa as the world — unlike ordinary beings who never tire of birth-and-death and do not seek the fruit of transcendent nirvāṇa."³⁸

"Seeing the world as nirvāṇa" — this is the ultimate aim of the six similes. To contemplate all conditioned phenomena as illusory is not to leave the world, but to see that the world itself is nirvāṇa. This perfectly resonates with Vasubandhu's verse, "neither conditioned nor apart from the conditioned."

III. Core Arguments

3.1 Analyzing the Six Similes: Six Dimensions of Contemplation

The Diamond Sūtra's six chosen similes — dream, illusion, bubble, shadow, dew, lightning — are not six synonyms but six distinct dimensions of contemplative instruction. Each illuminates one aspect of conditioned phenomena:

Dream (svapna) — the illusoriness of subjective experience. While you dream, everything in the dream is real: what you see, hear, and feel is one hundred percent experiential. Only upon waking do you realize none of it was substantially real. But "not substantially real" does not equal "never happened" — the fear in a dream genuinely accelerates your heartbeat; dream-joy genuinely makes you smile. The dream simile reveals: conditioned phenomena are real within experience but not substantially real in essence.

Illusion (māyā) — the substancelessness of external phenomena. An illusionist conjures elephants, horses, and armies — the spectators take them for real, yet they have no substance. The point of the illusion simile is not "fake" but rather "appearing as existent without any substance." As Nāgārjuna says, "although magical transformations are truly empty, they cause sentient beings to give rise to sorrow and anger"¹⁴ — illusory existence genuinely produces effects.

Bubble (budbuda) — the fragility of conditioned aggregation. Foam on water arises from the convergence of water and air; the slightest touch and it pops. The bubble simile emphasizes not "brevity" (that is the province of dew and lightning) but "arising the moment conditions converge, breaking the moment they disperse" — the existence of conditioned phenomena depends entirely on conditions; shift the conditions, and the dharma ceases to exist.

Shadow (chāyā) — dependent existence without self-substance. A shadow exists dependent on light and an object; remove either and the shadow vanishes. Yet a shadow is not "nothing" — you genuinely see it, and it genuinely follows your movements. The shadow simile illuminates the paratantra nature most directly: it exists dependently, not self-existently, yet it undeniably exists.

Dew (avasyāya) — transient yet real while present. Morning dew appears at dawn and evaporates when the sun rises. The dew simile shifts emphasis from the preceding four: where those four stress "non-substantial existence," dew stresses "impermanence" — it genuinely exists, but only fleetingly. In the moment of its existence, dew is completely real — you can touch it, taste it — yet it does not endure.

Lightning (vidyut) — momentary illumination, then gone. Lightning flashes across the dark sky, illuminating everything for an instant before vanishing. The lightning simile has a dual valence: "instantaneous" emphasizes impermanence (Vasubandhu maps it to "present dharmas: not abiding even a kṣaṇa"³²), while "illumination" suggests the illuminating function of prajñā — prajñā contemplating the illusoriness of conditioned phenomena is like lightning illuminating the dark: brief yet intense.

The six similes divide into two groups: the first four (dream, illusion, bubble, shadow) emphasize "non-substantial existence" — conditioned phenomena are not the kind of real thing you take them to be; the last two (dew, lightning) emphasize "impermanence" — even when conditioned phenomena exist, they are utterly transient. Together the two groups constitute the complete contemplation: conditioned phenomena are neither substantially real nor permanently abiding — yet they do genuinely arise within conditions and genuinely produce effects.

3.2 Trisvabhāva Mapping of the Six Similes

Reading the six similes through the trisvabhāva framework established in S5-P01:

Parikalpita level: you take the dream to be real. Everything in the dream appears so solid — you flee, fight, desire — one hundred percent convinced the dream-world is the real world. This is parikalpita: upon the paratantra (the dream does exist), a layer of "substantial reality" is projected. What the six similes target with their "like" is not conditioned phenomena themselves, but this layer of reificatory projection upon them.

Paratantra level: the dream does exist. While you dream, the dream-experience is present — it has causes (daytime memories, deep seeds), conditions (the state of sleep), and effects (emotional reactions within the dream). "All conditioned phenomena are like dreams" negates not the dream's existence but the layer of attachment that takes the dream to be "self-existently real." The Cheng weishi lun's "seemingly existent yet non-existent" precisely describes this level: non-existent (not the substantial reality claimed by parikalpita), seemingly existent (genuinely manifesting as existent through the paratantra mode).

Pariniṣpanna level: you know you are dreaming. In lucid dreaming, you become aware that "this is a dream" — yet you do not necessarily wake up; you can continue dreaming in full awareness that it is a dream. ⚠️ This is a heuristic analogy, not a theoretical equivalence. Buddhist pariniṣpanna is the direct realization of prajñā's non-discriminating wisdom, not a conceptual state of "knowing it is a dream." Yet the analogy offers a precise entry point: "contemplating the illusory" is not fleeing from the illusory — the bodhisattva does not wake up and stop dreaming, but awakens within the dream — contemplating the illusory through prajñā within the illusory itself, which is exactly the practice-significance of "one should contemplate them thus."

The trisvabhāva verse from the Laṅkāvatāra Sūtra (T0672) provides direct scriptural support for this mapping: parikalpita = "self-nature having nothing whatsoever" (flowers in empty space); paratantra = "like illusion, reflection, mirage, mirror-image, dream, fire-wheel" (illusory existence); pariniṣpanna = "suchness, emptiness, non-duality" (suchness).¹⁷ The six similes and the Yogācāra three natures are not external imposition — they describe different facets of the same cognitive structure.

3.3 Six Similes vs. Prajñā Ten Similes vs. Yogācāra Eight Similes: Compression or Selection?

The prajñā tradition has ten similes (T0223/T1509), the Diamond Sūtra (Kumārajīva) selects six, Bodhiruci/Yijing select nine, and the Yogācāra tradition (T1585/T1594) uses eight. The numerical differences are not arbitrary.

The Diamond Sūtra's six share only four items with the prajñā ten (illusion, dream, shadow, and possibly dew/mirage); "bubble" and "lightning" are unique to the Diamond Sūtra. Conversely, the prajñā ten's "empty space," "echo," "phantom city," "mirror-image," "transformation," and "water-moon" are all absent from the Diamond Sūtra's six.

This is not compression but selection. The Diamond Sūtra's selection logic can be inferred from Nāgārjuna's principle: "use things the mind does not attach to in order to illuminate things the mind does attach to."¹² All six similes are utterly transient, utterly fragile, utterly substanceless things — dreams, illusions, bubbles, shadows, dewdrops, lightning flashes — their shared characteristic being "you do not need to be convinced they are empty." You already do not cling to a dream, a bubble, or a bolt of lightning. The Diamond Sūtra uses the "non-attachment" you already possess to illuminate the "non-attachment" you have not yet realized — this is the contemplative logic of the six similes.

The Yogācāra eight similes follow a different selection logic. The Madhyāntavibhāga (T1597), fascicle five, maps the eight similes to specific objects of remedy: illusion → six internal sense-bases; mirage → vessel-world; dream → objects of enjoyment; reflection → fruits of bodily karma; echo → fruits of verbal karma; light-shadow → fruits of mental karma in non-meditative states; water-moon → fruits of mental karma in meditative states; transformation → mental karma of the hearing-type.³⁹ The Yogācāra eight similes are systematized antidote-tools; the Diamond Sūtra's six similes are direct pointers to the mind's nature. The two serve different functions and should not be ranked against each other.

3.4 Vasubandhu's "Nine Aspects of Conditioned Phenomena": Teaching Orientation

Vasubandhu positions the Diamond Sūtra's §32 as the final link in the sūtra's doubt-resolution chain. S5-P07 already analyzed Vasubandhu's doubt-structure. The doubt corresponding to §32 is:

"If all buddhas and tathāgatas constantly teach the dharma for sentient beings, how can it be said that the Tathāgata enters nirvāṇa?"³

Vasubandhu's response is not a logical answer but a contemplative pivot: do not ask whether the Tathāgata enters nirvāṇa — contemplate all conditioned phenomena as illusory, and you will understand that "neither conditioned nor apart from the conditioned is the nirvāṇa of the tathāgatas."³¹ The Tathāgata's nirvāṇa is neither conditioned phenomena (not limited by arising-and-ceasing) nor apart from conditioned phenomena (transformation-body teaching within arising-and-ceasing).

Vasubandhu divides the nine similes into three groups: seeing, characteristics, consciousness (three aspects of cognition) → vessel-world, body, experience (three aspects of existence) → past, present, future (three aspects of temporality).³² Together these three groups encompass the totality of conditioned phenomena: how you cognize them, how they exist, how they flow through time.

Particularly noteworthy is "cloud maps to the future": "Future dharmas are likewise — in their seed-time, the ālaya-vijñāna serves as the seed-root of all dharmas."³² Vasubandhu maps "cloud" to the future — clouds contain rain (seeds) not yet fallen but already harboring all possibilities. This directly connects to the Yogācāra seed theory: future dharmas have not yet manifest, but their seeds are already in the ālaya-vijñāna — like rain within clouds. Kumārajīva's deletion of "cloud" may have been precisely because this simile points toward the ālaya-vijñāna seed theory — within the Diamond Sūtra's prajñā context, introducing too specifically Yogācāra a concept might blur the focus.

3.5 The Ontological Status of Illusory Existence: Neither Existent Nor Non-Existent

The core doctrinal content of the six similes can be summarized in four characters: fei you fei wu (neither existent nor non-existent).

"Non-existent" — conditioned phenomena are not the "substantial existence" that parikalpita takes them to be. You believe this table is an independent, self-subsisting entity — it is not. It is a phenomenon manifested through the convergence of innumerable conditions: wood, glue, a craftsman's skill, your conceptual classification. Remove any one condition, and "the table" ceases to exist.

"Not nothing" — conditioned phenomena are not the "total nothingness" that annihilationism claims. There genuinely is a table in front of you — you can place a book on it, write at it; it genuinely exists within conditions and genuinely performs its function.

The Madhyāntavibhāga (T1594) expresses this position precisely in verse:

「依一分開顯，或有或非有；依二分說言，非有非非有。如顯現非有，是故說為無。由如是顯現，是故說為有。」

"According to one aspect revealed, either existent or non-existent; according to both aspects, neither existent nor non-non-existent. As it manifests, it is non-existent — hence one says it is nothing. Yet because it so manifests — hence one says it is something."⁴⁰

"As it manifests, it is non-existent" — the paratantra's mode of manifestation is not substantial existence; "because it so manifests, hence one says it is something" — yet precisely because there is this manifestation, one calls it existent. The Diamond Sūtra's six similes operate exactly on this Middle Way of "neither existent nor non-non-existent."

The Yogācārabhūmi (T1579), fascicle thirty-six, develops the same structure through the four kinds of true knowledge:

"The linguistically expressible nature, being not substantially real, is non-existent; the nature apart from language, being genuinely established, is not nothing. Thus by ultimate truth, form is non-existent — there are no form-dharmas therein; by conventional truth, form is not nothing — form-dharmas are spoken of therein."⁴¹

From the perspective of ultimate truth, form is non-existent ("there are no form-dharmas therein"); from the perspective of conventional truth, form is not nothing ("form-dharmas are spoken of therein"). The Diamond Sūtra's "all conditioned phenomena are like dreams, illusions, bubbles, and shadows" is contemplation from the ultimate perspective — yet this contemplation does not negate the conventional level of existence.

3.6 "One Should Contemplate Them Thus": Contemplative Method, Not Knowledge-Proposition

The final five characters of the six-simile verse — "one should contemplate them thus" (應作如是觀) — are the verse's landing point, and also the five characters most easily overlooked.

"Contemplate" (pratyavekṣa) is not "know." You can know that all conditioned phenomena are like dreams, illusions, bubbles, and shadows — reading this paper, you now know — but knowing is not contemplating. Contemplation is a sustained, embodied cognitive practice. Zongmi's "contemplation is the wondrous wisdom of prajñā"² makes explicit: the "contemplation" here is prajñā observation, not conceptual thinking.

The Cheng weishi lun further clarifies that the illusory-contemplation is not something ordinary beings can directly accomplish:

"Only after non-discriminating wisdom has realized suchness can subsequently-attained wisdom fully comprehend the paratantra nature as being like illusory events."²⁸

You must first realize suchness through non-discriminating wisdom (fundamental wisdom), and only then, within subsequently-attained wisdom, can you truly "comprehend" dependent arising as illusory. This means: the six-simile verse is not a contemplative practice you can immediately execute upon reading — it is a direction, a map, showing you the state that practice ultimately reaches.

But this does not mean the six similes hold no significance for practitioners who have not yet realized suchness. As contemplative guidance, the six similes function thus: each time you face conditioned phenomena (the pressure of work, the tangles of relationships, the pain of the body), they remind you: "This is real experience, but not the kind of substantial reality you take it to be." This reminder is not prajñā, but it is prajñā's preliminary — it loosens your reification of conditioned phenomena, preparing the conditions for eventual prajñā realization.

This is also the direct application of P02's (Kōan Mirror) mirror-function. When you read "all conditioned phenomena are like dreams, illusions, bubbles, and shadows," what thought arises? If you think "nothing matters anymore" — you have fallen into annihilationism. If you think "I understand the illusory" — you have turned the illusory into a concept. The six similes are a mirror, reflecting your present mind — and "one should contemplate them thus" asks you not to fixate on what the mirror reflects, but to keep contemplating.

3.7 The Final Closure of Merit Comparisons

§32 opens with the sūtra's largest-scale gift-giving comparison:

"If a person were to fill immeasurable asaṃkhyeya worlds with seven treasures for giving..."⁹

From §4's great trichiliocosm, to §11's Ganges-sand-number trichiliocosms, to §32's immeasurable asaṃkhyeya worlds — the scale of giving escalates to cosmic proportions. Yet the conclusion never changes: upholding even four lines of the sūtra and teaching them to others generates merit surpassing that giving.

S5-P05 already analyzed the escalation structure of the merit comparisons and their "self-destructing reward mechanism" teaching function. P09 builds on that foundation to ask: why are the six similes the ultimate answer to the merit comparisons?

The answer lies within the six similes themselves: seven-treasure giving is conditioned — "like dreams, illusions, bubbles, and shadows." No matter how vast the merit of a conditioned act, it remains conditioned in nature: arising through causes, non-substantially-real, non-permanent. The reason sūtra-upholding surpasses seven-treasure giving is not that "the sūtra's merit is larger" (that would still be a comparison within the conditioned), but that "one should contemplate them thus" points directly to prajñā — and prajñā transcends the domain of the conditioned.

This also explains why the Buddha provides no further logical explanation after the merit comparison and simply delivers the six similes. Logical explanation still operates on the conceptual plane; the six similes point directly to contemplation — you do not need to "understand" why sūtra-upholding surpasses giving; you need to "contemplate" all conditioned phenomena as like dreams, illusions, bubbles, and shadows. Understanding is knowing; contemplation is practice.

3.8 Everyday Analogy: The Movie Theater

Imagine you are sitting in a movie theater.

On the screen, the protagonist struggles on the brink of life and death. You know this is a movie — acted by actors, directed by a director, produced with special effects — yet your heart races. When the protagonist is rescued, you exhale with relief. When the villain is brought to justice, you feel a quiet satisfaction. After the credits roll, you walk out of the theater; a cool breeze hits your face, and you return to "reality" — yet the emotions you felt during those ninety minutes were real.

"Knowing it is fiction" does not make the experience disappear. You know the movie is fake, but you still laugh and cry. Why? Because the experience itself is paratantra — it arises dependent on the director's narrative, the actors' performances, your own memories and emotions — and in the moment it arises, it is real.

But "knowing it is fiction" does change one thing: you are not trapped inside it. After leaving the theater, you do not continue worrying about the characters. You do not call the police to report a kidnapping. You know it was a story — real experience, but not a substantially real world.

"All conditioned phenomena are like dreams, illusions, bubbles, and shadows" is like the Buddha telling you: you have been sitting in a movie theater all along — your life, your work, your relationships — are all "movies" of converging causes and conditions. They are not fake — your pain is real pain, your joy is real joy. But they are not what you take them to be: independently self-existing entities.

What is "one should contemplate them thus"? It is not asking you to leave the theater (that would be the lesser-vehicle nirvāṇa of world-transcendence); it is not asking you to pretend the movie is not compelling (that would be the false practice of emotional suppression); it is asking you to know, while watching the movie, that you are watching a movie — to maintain contemplative awareness within experience, without being trapped by experience.

⚠️ This analogy is a heuristic comparison. A movie theater has clear "entering" and "leaving"; practice does not. You cannot "walk out" of saṃsāra's theater — you can only awaken while the "movie" continues to play. The Diamond Sūtra's contemplation is not fleeing from conditioned phenomena but transforming cognition within them.

IV. Cross-Disciplinary Parallels

4.1 The Simulation Hypothesis and the Illusory-Contemplation ⚠️ Heuristic Analogy

The "simulation hypothesis" in contemporary philosophy (Bostrom, 2003) proposes that we may be living in a computer simulation run by a higher intelligence. This hypothesis shares a surface structural similarity with "all conditioned phenomena are like dreams, illusions, bubbles, and shadows": both question the "substantial reality" of the experiential world.

But the differences far outweigh the similarities. The simulation hypothesis is an ontological proposition — it asks "is the world really real?"; the six similes are an epistemological contemplation — they do not ask whether the world is real but teach you to contemplate the non-substantial-reality of conditioned phenomena. The simulation hypothesis posits a "reality outside the simulation" (the computer running the simulation, the higher intelligence); the six similes posit no "entity outside the illusory" — the paratantra does not need a "more real substrate" to operate; it simply is the convergence of causes and conditions.

At a deeper level: if the simulation hypothesis were true, it would mean experience is "manufactured deception" — a hoax; the six similes' "like illusion" is not deception — conditioned phenomena being illusory does not mean they are deceiving you; rather, you yourself take what is illusorily existent to be substantially real. The problem lies not in the world, but in your cognition.

The valid boundary of this analogy: the simulation hypothesis can help modern readers quickly grasp the intuition that "everything you experience may not be the kind of reality you think it is." But the illusory-contemplation must not be equated with a Buddhist version of the simulation hypothesis — the former is a contemplative method, the latter a hypothesis; the former transforms cognition, the latter merely substitutes one ontological explanation for another.

4.2 Lucid Dreaming Psychology and the Bodhisattva's Illusory Conduct ⚠️ Heuristic Analogy

Lucid dreaming is a well-studied phenomenon in psychology: the dreamer becomes aware within the dream that they are dreaming but does not wake up, and can to some degree influence the dream's progression (LaBerge, 1985).

This phenomenon provides an intuitive entry-point for understanding "how bodhisattvas act within the illusory." The bodhisattva knows all conditioned phenomena to be illusory — like a lucid dreamer knowing they are dreaming — yet the bodhisattva does not "wake up" (does not enter nirvāṇa), but practices great compassion within the illusory (helping, within the dream, those who do not yet know they are dreaming).

The passage from the Mahāprajñāpāramitā Sūtra (T0220b) applies directly here: precisely because sentient beings do not know that all dharmas are illusory, bodhisattvas must practice the bodhisattva path within the illusory.¹⁶ A lucid dreamer does not cease to feel the dream's situations just because they "know it is a dream" — dream-fear still accelerates the heartbeat, dream-beauty still evokes wonder. But the lucid dreamer is not swallowed by dream-fear — knowing it is a dream, they maintain awareness within the fear. This is structurally highly similar to the bodhisattva practicing compassion within the illusory.

Strict limitations of this analogy: lucid dreaming is a personal psychological state that does not involve altruism; the bodhisattva's illusory conduct is driven by great compassion. Lucid dreaming has a "waking up" possibility — you will eventually wake, and the dream ends; the bodhisattva's illusory-contemplation has no "wake up and it's over" endpoint — sentient beings in saṃsāra are boundless, and the bodhisattva's compassionate action is boundless. Most importantly, lucid dreaming is awareness at the ordinary-consciousness level; the bodhisattva's illusory-contemplation is direct realization through prajñā wisdom — the two operate at different depths of cognition entirely.

V. Middle Way Corrections

5.1 ❌ "Everything Is Illusory" = Nothing Exists

This is the greatest teaching danger of the entire S5 series — annihilationism (ucchedavāda).

"All conditioned phenomena are like dreams, illusions, bubbles, and shadows" → "So everything is fake, nothing exists, nothing matters." This inference commits a precise logical error: it equates "non-substantially-real" with "non-existent."

The Cheng weishi lun's "seemingly existent yet non-existent"²⁷ is the correction for this error. "Non-existent" — not the substantial reality that parikalpita claims; but "seemingly existent" — genuinely manifesting as existent through the paratantra mode. What is empty is parikalpita, not paratantra. The six similes negate your reificatory projection upon conditioned phenomena, not conditioned phenomena themselves.

The Laṅkāvatāra's defense line is the most direct: "Birth-and-death is like an illusory dream, yet karma therein is not destroyed."¹⁹ Karmic cause-and-effect is not annulled by illusoriness. If you strike someone in a dream, upon waking the other person is not actually hurt — but within saṃsāra's "dream," karmic cause-and-effect operates in full. Illusory does not equal without causality.

Kuiji's summary in the Shuji (T1830) is the most precise: "Parikalpita, following the nature of linguistic convention, fails to be substantially real — hence non-existent. Paratantra, apart from linguistic convention, is genuinely established — hence not nothing."³⁰ Neither existent nor non-existent — this is the Middle Way.

5.2 ❌ "Illusory" = No Need to Practice

"If everything is illusory, practice is also illusory — so why practice?"

This question harbors a hidden premise: "illusory things produce no effects." But the very core of the six similes is: the illusory does produce effects. Fear in a dream is real fear — you wake from a nightmare with racing heart and cold sweat — "like a dream" does not mean "no effects." An illusionist's spectacle causes the audience to gasp — "like an illusion" does not mean "useless."

Nāgārjuna's words apply once more: "Although magical transformations are truly empty, they cause sentient beings to give rise to sorrow, anger, joy, and delusion."¹⁴ Conditioned phenomena are illusory, yet illusory conditioned phenomena genuinely produce suffering and joy. Sentient beings suffer within illusory conditioned phenomena — and this suffering is real. The meaning of practice is not annulled by illusoriness — quite the contrary: precisely because beings do not know the illusory and therefore suffer, practice (knowing the illusory) has meaning.

The Mahāprajñāpāramitā Sūtra provides the most powerful argument: "Because sentient beings cannot by themselves know that all dharmas are illusory — therefore bodhisattvas practice the bodhisattva path for immeasurable kalpas."¹⁶ The illusory is not the termination of practice; it is the ground for practice.

S5-P04's (Dharma Too Should Be Relinquished) raft-analogy reconnects here: the raft is illusory — but an illusory raft genuinely ferries you across. You need not wait until you "know the raft is illusory" before you begin crossing — you cross first, and upon reaching the other shore naturally know the raft's illusoriness. The six similes work the same way: you practice first, and at a certain stage directly realize the illusory. Knowledge first, then practice is the conceptual path; practice first, then realization is the prajñā path.

5.3 ❌ "Illusory" = The Buddhist Version of Nihilism

Buddhist "emptiness" is frequently equated by Western readers with philosophical nihilism. This is a serious misreading.

Nihilism negates meaning — "life has no meaning," "morality has no foundation," "existence is absurd." The Buddhist illusory-contemplation negates not meaning but substantial reality — conditioned phenomena are not independently self-existing entities, but this does not mean they have no meaning. A flower opens through the convergence of causes and conditions — it is not an "independently self-existing entity" — yet its beauty, the feeling it evokes in you, its function within the ecosystem are all real.

More precisely: nihilism is negation at the ontological level — "nothing exists" or "existence has no foundation"; the illusory-contemplation is transformation at the epistemological level — "the way you cognize existence needs to change." The illusory-contemplation does not negate the existence of conditioned phenomena; it negates the cognitive mode that takes conditioned phenomena to be "substantially real."

Guṇadeva's (T1515) closure most powerfully refutes the nihilistic misreading: "Therefore all buddhas and tathāgatas see the world as nirvāṇa — unlike the two vehicles who turn away from birth-and-death and delight in nirvāṇa without transforming beings. They see nirvāṇa as the world — unlike ordinary beings who never tire of birth-and-death."³⁸ The Tathāgata "sees the world as nirvāṇa" — the world need not be negated, fled, or declared void — the world itself is nirvāṇa. This is the ultimate affirmation of the illusory-contemplation.

5.4 ❌ The Six Similes Are Merely Literary Rhetoric

"All conditioned phenomena are like dreams, illusions, bubbles, and shadows" is frequently cited as a Buddhist "famous quotation" — on calligraphy scrolls, in meditation-hall couplets, in social media inspirational posts — yet it is rarely taken up as a contemplative instruction to be practiced.

The six similes are not rhetoric. The character "contemplate" (觀) in "one should contemplate them thus" denotes meditative observation (pratyavekṣa), not literary appreciation. Zongmi states explicitly: "Contemplation is the wondrous wisdom of prajñā; with this wondrous wisdom one contemplates conditioned dharmas as being like dreams and illusions."² Vasubandhu's "rightly contemplated by wondrous wisdom" likewise emphasizes: the six similes are objects to be rightly contemplated through wondrous wisdom (prajñā), not knowledge to be "understood" through conceptual thinking.³¹

Zongmi's progressive doubt-resolution chain³⁶ further reveals: each layer of the similes responds to a concrete practice-question — from "I clearly see all objects" to "where does karmic retribution come in?" to "why do bodhisattvas bother acting?" — this is not the structure of poetry but the structure of contemplation. Each simile is an entry-point for contemplation; each "another doubt" is an occasion for contemplation to deepen.

Treating the six similes as rhetoric is like treating a prescription as calligraphy: you admire the handwriting, but you never take the medicine.

VI. Conclusion: The Final Cut, the Gentlest Cut

The six similes are the Diamond Sūtra's final cut.

From S5-P01 to P09, the prajñā blade of the Diamond Sūtra has completed an entire arc:

P01 revealed the blade's structure — the jífēi tripartite formula mapping trisvabhāva, the micro-level operating mechanism of every cut the Diamond Sūtra delivers. P02 revealed the blade's nature — the Diamond Sūtra is a mirror, not a weapon; what you see depends on what you bring. P03 delivered the first cut — all marks are illusory — dismantling attachment to "marks." P04 delivered the second cut — even the dharma should be relinquished — dismantling attachment to the teaching. P05 revealed the reward apparatus — the merit-comparison escalation structure ultimately self-destructs; wholesome aspiration must be transformed. P06 provided the practice instruction — "abide nowhere and give rise to mind"; not sequential but simultaneous. P07 revealed the sūtra's self-reenactment structure — the same question asked twice, the second time deeper — from dismantling self-grasping to dismantling dharma-grasping. P08 negated the most concealed "marks" — even the Buddha's thirty-two excellent marks cannot serve as the basis for seeing the Tathāgata.

P09 — the six similes — pushes all prior negations to the extreme: not only are "marks" illusory, not only is "the teaching" illusory, not only are "Buddha-marks" illusory — all conditioned phenomena are like dreams, illusions, bubbles, and shadows.

Yet this final cut is also the gentlest cut.

It does not destroy the world. It liberates you.

"Like dreams, illusions, bubbles, and shadows" does not mean the world does not exist — the world genuinely exists within conditions; your pain is real pain, your joy is real joy. "Like dreams, illusions, bubbles, and shadows" means: you do not need to be trapped by the world — you can function in the world, experience the world, practice the bodhisattva path in the world, while maintaining contemplative awareness: all of this is paratantra, seemingly-existent-yet-non-existent, arising through conditions — neither to be reified as substantially real nor negated as nihilistically void.

Zixuan's eight-character summation is the most precise closure for the entire S5 series: "Active yet perpetually serene, serene yet perpetually active — hence teaching dharma all day long is nirvāṇa all day long."³⁷

Guṇadeva's one sentence is the deepest single annotation of the entire Diamond Sūtra: "Therefore all buddhas and tathāgatas see the world as nirvāṇa — unlike the two vehicles who turn away from birth-and-death and delight in nirvāṇa without transforming beings. They see nirvāṇa as the world — unlike ordinary beings who never tire of birth-and-death and do not seek the fruit of transcendent nirvāṇa."³⁸

Seeing the world as nirvāṇa. Seeing nirvāṇa as the world.

This is the ultimate aim of the six similes. And it is the Diamond Sūtra's final teaching.

P10 will be the final paper of S5 — bridging the Bǎifǎ (Hundred Dharmas) to the Diamond Sūtra, and synthesizing S3 (construction) with S5 (cutting). S3 spent fourteen papers precisely classifying all dharmas; S5 spent nine papers cutting through the substantial reality of all dharmas with the prajñā blade — P10 must answer the question: after the cutting, what remains? The hundred dharmas of the Bǎifǎ Míngmén Lùn are all like dreams, illusions, bubbles, and shadows — yet the illusory hundred dharmas remain the practitioner's map. Construction and deconstruction, language and transcendence, raft and far shore — P10 will seek dynamic equilibrium amid these tensions.

References

I. Primary Buddhist Sources

• Jingang bore boluomi jing 金剛般若波羅蜜經, trans. Kumārajīva (Yaoqin), T08, No. 235《金剛般若波羅蜜經》Vajracchedikā-prajñāpāramitāT8, No. 235View on CBETA online reader ↗.
• Jingang bore boluomi jing 金剛般若波羅蜜經, trans. Bodhiruci (Yuan Wei), T08, No. 236《金剛般若波羅蜜經》(菩提流支譯)Vajracchedikā-prajñāpāramitā-sūtra (Bodhiruci tr.)T8, No. 236View on CBETA online reader ↗a.
• Fo shuo nengduan jingang bore boluomiduo jing 佛說能斷金剛般若波羅蜜多經, trans. Yijing (Tang), T08, No. 239《能斷金剛般若波羅蜜多經》(玄奘譯)Vajracchedikā-prajñāpāramitā-sūtra (Xuanzang tr.)T8, No. 239View on CBETA online reader ↗.
• Mohe bore boluomi jing 摩訶般若波羅蜜經, trans. Kumārajīva (Yaoqin), T08, No. 223《摩訶般若波羅蜜經》Pañcaviṃśatisāhasrikā-prajñāpāramitā-sūtraT8, No. 223View on CBETA online reader ↗.
• Da bore boluomiduo jing 大般若波羅蜜多經, trans. Xuanzang (Tang), T05-07, No. 220.
• Weimojie suoshuo jing 維摩詰所說經, trans. Kumārajīva (Yaoqin), T14, No. 475《維摩詰所說經》Vimalakīrti-nirdeśaT14, No. 475View on CBETA online reader ↗.
• Lengqie abaduoluo baojing 楞伽阿跋多羅寶經, trans. Guṇabhadra (Liu Song), T16, No. 670《楞伽阿跋多羅寶經》(四卷楞伽)Laṅkāvatāra-sūtra (4-fascicle)T16, No. 670View on CBETA online reader ↗.
• Dasheng ru lengqie jing 大乘入楞伽經, trans. Śikṣānanda (Tang), T16, No. 672《大乘入楞伽經》(七卷楞伽)Laṅkāvatāra-sūtra (7-fascicle)T16, No. 672View on CBETA online reader ↗.
• Jieshenmi jing 解深密經, trans. Xuanzang (Tang), T16, No. 676《解深密經》Saṃdhinirmocana-sūtraT16, No. 676View on CBETA online reader ↗.
• Da zhidu lun 大智度論, by Nāgārjuna, trans. Kumārajīva (Yaoqin), T25, No. 1509《大智度論》Mahāprajñāpāramitā-upadeśa-śāstraT25, No. 1509View on CBETA online reader ↗.
• Jingang bore boluomi jing lun 金剛般若波羅蜜經論, by Vasubandhu, trans. Bodhiruci (Yuan Wei), T25, No. 1511《金剛般若波羅蜜經論》(世親)Vajracchedikā-prajñāpāramitā-śāstra (Vasubandhu)T25, No. 1511View on CBETA online reader ↗.
• Poqu zhu buhuai jiaming lun 破取著不壞假名論, by Guṇadeva, trans. Yijing (Tang), T25, No. 1515《金剛般若波羅蜜經破取著不壞假名論》T25, No. 1515View on CBETA online reader ↗.
• Yuqie shidi lun 瑜伽師地論, by Maitreya, trans. Xuanzang (Tang), T30, No. 1579《瑜伽師地論》Yogācārabhūmi-śāstraT30, No. 1579View on CBETA online reader ↗.
• Cheng weishi lun 成唯識論, by Dharmapāla et al., trans. Xuanzang (Tang), T31, No. 1585《成唯識論》Vijñaptimātratā-siddhi-śāstraT31, No. 1585View on CBETA online reader ↗.
• Bian zhongbian lun 辯中邊論, by Vasubandhu, trans. Xuanzang (Tang), T31, No. 1594《攝大乘論本》(玄奘譯)Mahāyānasaṃgraha (Xuanzang tr.)T31, No. 1594View on CBETA online reader ↗.
• Cheng weishi lun shuji 成唯識論述記, by Kuiji, T43, No. 1830《成唯識論述記》T43, No. 1830View on CBETA online reader ↗.
• Kuiji, Jingang bore boluomi jing zanshu 金剛般若波羅蜜經讚述, T33, No. 1700《金剛般若經贊述》T33, No. 1700View on CBETA online reader ↗.
• Zongmi, Jingang bore jing shu lun zuanyao 金剛般若經疏論纂要, T33, No. 1701《金剛般若經疏論纂要》T33, No. 1701View on CBETA online reader ↗.
• Zixuan, Jingang jing zuanyao kanding ji 金剛經纂要刊定記, T33, No. 1702《金剛經纂要刊定記》T33, No. 1702View on CBETA online reader ↗.
• Zongmi, Jingang bore jing shu lun zuanyao 金剛般若經疏論纂要, T33, No. 1701《金剛般若經疏論纂要》T33, No. 1701View on CBETA online reader ↗.

II. Modern Scholarship

• Bostrom, Nick. "Are You Living in a Computer Simulation?" Philosophical Quarterly, 53(211), 2003, pp. 243-255.
• LaBerge, Stephen. Lucid Dreaming: The Power of Being Awake and Aware in Your Dreams. Ballantine Books, 1985.

III. Sūtra & Śāstra Index

Cross-Reference Index

Footnotes

Pointing at the Moon · S5-P09 · All Conditioned Phenomena Are Like Dreams and Illusions · Version 1.0 · 2026 The true nature of all dharmas — just as they are.

All sūtra and śāstra quotations in this study have been verified against the CBETA Chinese Electronic Tripiṭaka Collection.

This research paper is released under a CC BY-NC-SA 4.0 license.

Source repository: https://github.com/pointing-at-the-moon/dharma-research