Deep into the Causal Chain — Shaping Your Future

I. The Problem: An Era of Seeking Fruit Without Planting Cause

The Farmer and the Modern Person

A farmer would never consider "you reap what you sow" a profound insight. He tills the soil, sows the seeds, waters them, and waits—this is simply the natural order of things. Whatever seeds you plant, those are the fruits you harvest. Plant rice, harvest rice. Plant wheat, harvest wheat. The farmer never questions this logic, because he verifies it with his own eyes every single day.

But the modern person is not a farmer.

Modern society trains a particular mindset—you feel entitled to certain things, yet you have not planted the corresponding causes. You want to lose weight, but you do not want to eat less. You want to get into a good university, but you do not want to study. You want financial freedom, but you do not want to put in the equivalent effort. The deeper problem is this: when the fruit has already ripened—you are overweight, you did not get in, you are short on money—your thought is not "what cause did I plant?" but rather "can I somehow reverse this fruit?"

But an apple cannot turn back into a seed.

Once a fruit has ripened, it is a fruit. It must be consumed, digested, and allowed to decay—and then, if conditions are sufficient, the next seed will emerge. This is not pessimism; this is the basic logic of causality. You cannot obtain what you seek, so you suffer. And the reason you cannot obtain it is that you have a fundamental misunderstanding of how causality operates.

The Buddhist Answer

The Buddha described this mechanism with precision twenty-five hundred years ago. The Saṃyuktāgama records a bhikṣu asking the Buddha:

若無我者，作無我業，於未來世，誰當受報？¹

"If there is no self, and the actions performed are without a self, then who will receive the retribution in future lives?"

If there is no "self" doing anything, then who bears the future fruit? The question appears metaphysical, but it is in fact deeply practical—it asks: what exactly connects cause to fruit?

The Yogācāra answer is: seeds (bīja).

Every action of your body, speech, and mind—every physical movement, every word, every thought—is "perfuming" (vāsanā) your ālaya-vijñāna, depositing seed after seed. These seeds are not metaphors—they are what Yogācāra describes as genuinely existing functional entities, possessing six precisely defined characteristics, a complete operational mechanism, and the capacity for continuity across three lifetimes.

What this paper sets out to do is lay this mechanism open for examination.

II. Scriptural Foundations: The Complete Mechanism of Seeds Formed Through Karmic Perfuming

2.1 The Āgama Foundation: Karmic Fruit Without a Doer

Before entering the precision machinery of Yogācāra, we must first return to the Buddha's original teaching. In the Saṃyuktāgama, the "Sūtra on Ultimate Emptiness" (第一義空經), the Buddha explicitly declares:

有業報而無作者。此陰滅已，異陰相續。²

"There is karmic fruit but no doer. When these aggregates cease, different aggregates continue."

"There is karmic fruit but no doer"—the retribution of karma genuinely exists, yet there is no permanent "self" traveling through it. "When these aggregates cease, different aggregates continue"—one set of five aggregates ceases, and another set arises in succession, like the passing of a candle flame.

This passage establishes two premises:

1. Causality is real: karmic retribution is not a fabrication.
2. Continuity without self: a permanent self is not required for causal continuity to obtain.

But a question immediately follows: if there is no "self," what is the "intermediate term" between cause and fruit? After karma ceases, what preserves it until the next life, when it bears fruit?

This is precisely the question Yogācāra sets out to answer.

2.2 The Six-Step Mechanism: From Creating Karma to Experiencing Fruit

Fascicle 8 of the Cheng Weishi Lun encapsulates the entire mechanism in a single verse:

由諸業習氣，二取習氣俱；前異熟既盡，復生餘異熟。³

"Through the vāsanā of various karmas, together with the vāsanā of the twofold grasping; when the prior vipāka is exhausted, another vipāka arises anew."

This verse contains the complete logic of karmic cycling. Let us unfold it step by step:

Step One: Creating Karma (karma-creation)

The sixth consciousness (mano-vijñāna) is the only consciousness capable of fully creating karma.⁴ Through the mental factor of cetanā (volition), it initiates the three types of karma—bodily, verbal, and mental—which may be wholesome, unwholesome, or unmoving (meritorious, demeritorious, or immovable). This is the starting point of the causal chain.

Step Two: Perfuming (vāsanā)

Karma "arises and ceases without interval"—it vanishes the very moment it is created. But it does not vanish without a trace. It perfumes the root consciousness—leaving a functional imprint in the ālaya-vijñāna, termed "vāsanā" (habit-energy) or "bīja" (seed).³

The classical term for this process is "seeds formed through karmic perfuming" (業所熏成種). The key verb is "perfume" (熏): just as fragrance permeates clothing, karma perfumes the ālaya-vijñāna, leaving invisible yet real functional differentiations.

Among the three types of vāsanā, the one directly related to karmic rebirth is bhavāṅga-vāsanā (有支習氣, existence-link habit-energy):

有支習氣，謂招三界異熟業種。有支有二：一有漏善，即是能招可愛果業；二諸不善，即是能招非愛果業。隨二有支，所熏成種，令異熟果善惡趣別。⁵

"Bhavāṅga-vāsanā refers to the karmic seeds that attract vipāka across the three realms. There are two types of existence-links: first, conditioned wholesome karma, which attracts desirable fruition; second, unwholesome karma, which attracts undesirable fruition. According to these two existence-links, the seeds formed through perfuming determine the differentiation of vipāka-fruit into good and evil destinies."

Seeds perfumed by conditioned wholesome karma attract favorable rebirths; seeds perfumed by unwholesome karma attract unfavorable rebirths. "According to these two existence-links, the seeds formed through perfuming"—these eight characters are the precise answer to "how karma becomes seeds."

Step Three: Continuity (展轉相續)

Once seeds enter the ālaya-vijñāna, they do not simply sit waiting for a trigger to explode. They transmit continuously in succession—passing along within the stream of consciousness, like an undercurrent in a river.

The Mahāyānasaṃgrahabhāṣya (Asaṅga's commentary) poses a critical question:

若離阿賴耶識，何處安立彼業種子，而復得言生果現前轉名為有？⁶

"If apart from the ālaya-vijñāna, where could those karmic seeds be established? And how could one say that fruit arises and manifests, becoming what is called 'existence'?"

Without the ālaya-vijñāna, where would karmic seeds be stored? How could one claim that fruition manifests? This is one of the core arguments for the necessary existence of the ālaya-vijñāna—it is the "storehouse" for seeds, the foundation upon which causal continuity rests.

Step Four: Affliction-Moistening (潤生)

Seeds exist within the ālaya-vijñāna, but they do not automatically bear fruit. They require affliction-moistening—the nourishment of kleśa (afflictions). The Dasheng Qixin Lun Shu states explicitly:

引持過去無明所發諸行善惡業種，令成堪任成果之有。若無惑潤，業種焦亡。⁷

"It draws and sustains the wholesome and unwholesome karmic seeds generated by past ignorance-driven formations, bringing them to the state of readiness to bear fruit. Without affliction-moistening, the karmic seeds wither and perish."

Taṇhā (craving) and upādāna (clinging) are the primary forces of moistening—the twelve-link chain segment "craving → clinging → becoming" is precisely the process by which seeds transition from dormancy to activation.

Here lies an implication of immense importance for practice: if one can sever afflictions, seeds will not bear fruit even if they still exist—"the karmic seeds wither and perish," like seeds without water, destined only to dry up and die. This is the mechanism by which an arhat escapes the three realms—not by eliminating all seeds (which is impossible), but by severing the afflictions that moisten them.

Step Five: Ripening (vipāka)

When conditions are sufficient and seeds mature, they attract vipāka-fruit—drawing forth the retributive body of the next life. The defining characteristic of vipāka is "cause and fruit differ in category yet ripen"—wholesome and unwholesome causes produce morally indeterminate (avyākṛta) fruit.⁸

Fruition operates on three levels:

• Vipāka-phala (異熟果, ripened fruit): the overall retribution—which destiny you are reborn into. The ten unwholesome actions attract rebirth in the three lower realms; the ten wholesome actions attract rebirth in the human and celestial realms.⁹
• Niṣyanda-phala (等流果, outflow-conforming fruit): specific retribution—the personal tendencies you carry. Those who kill have short lives; those who steal experience poverty; those who engage in sexual misconduct encounter unfaithful companions.⁹
• Adhipati-phala (增上果, dominant fruit): environmental retribution—the external conditions of your surroundings. Killers inhabit environments where vegetation lacks vitality; thieves inhabit lands plagued by hailstorms and natural disasters.⁹

Step Six: Cycling (輪轉)

前異熟既盡，復生餘異熟。³

"When the prior vipāka is exhausted, another vipāka arises anew."

Once one life's vipāka-fruit has been fully consumed, newly matured seeds take over, generating the next life's vipāka-fruit. This cycles without end—requiring no external creator, operating purely as an internal dynamic system of seeds and consciousness.

2.3 The Six Characteristics of Seeds: Precise Specifications

Fascicle 2 of the Cheng Weishi Lun defines what qualifies as a "seed" through six conditions:

然種子義，略有六種。¹⁰

"The meaning of 'seed' is, in brief, sixfold."

Conclusion: "Only the functional differentiations within the root consciousness possess all six characteristics and qualify as seeds—nothing else does."¹⁰ Only the functional differentiations within the ālaya-vijñāna fully satisfy all six conditions and qualify to be called seeds.

III. Core Argument: Karma as Epigenetics

3.1 Past Karma → Present You: Your "Genetic Code"

The Avataṃsaka Sūtra describes eight types of vipāka perfection:

云何異熟？謂有八種：一者壽量圓滿；二者色相圓滿；三者種族圓滿；四者自在圓滿。¹¹

"What is vipāka? There are eight types: first, perfection of lifespan; second, perfection of physical appearance; third, perfection of lineage; fourth, perfection of autonomy."

Length of life, beauty or plainness of appearance, high or low birth, degree of personal freedom—all these "innate conditions" that you bring into this life are, within the Yogācāra framework, entirely the vipāka-fruit of karmic seeds from past lives.

This is not superstition. It is a precise causal system: whatever quality of seeds you planted in past lives, that is the quality of fruit that grows in this one. Just as your DNA determines your basic biological traits—except here, the "DNA" is not material genes but the karmic seeds within the ālaya-vijñāna.

3.2 Not Fatalism: Seeds Are Dynamic

If "determinacy of nature" (svabhāva-niyata) were the whole story, then seed theory would collapse into fatalism—your past lives determined everything, and you can change nothing. But "determinacy of nature" is only one-sixth of the six characteristics. Five other characteristics counterbalance it:

Seeds can grow. A Sanlun (Mādhyamika) school source states:

業所熏成種......運運增長名成就業。若限勢過及希望止，業種不增即名捨業。

"Seeds formed through karmic perfuming... progressively grow, which is called 'accomplishing karma.' When the force of momentum is exhausted or aspiration ceases, the karmic seeds stop growing, which is called 'abandoning karma.'"

Seeds are not static deposits. They grow in response to your sustained intention and action—or, when you stop feeding them, they cease to grow.

Seeds have varying strength. Pure Land literature records:

縱有微細業種，不能為異熟因牽生苦果。唯以其業種極羸劣。¹²

"Even if subtle karmic seeds exist, they cannot serve as vipāka-causes to generate suffering-fruit—precisely because those seeds are extremely weakened."

Even if unwholesome karmic seeds exist, if they have been weakened to the point of being "extremely feeble" through antidotal practices, they no longer have the force to attract suffering-fruit.

Seeds can be transformed. The Madhyāntavibhāga describes the mechanism of āśraya-parāvṛtti (transformation of the basis):

不靜地煩惱及業種子滅，靜地功德善根熏習圓滿。¹³

"The afflictions and karmic seeds of the unstable grounds are extinguished; the wholesome roots and merit of the stable grounds reach perfection through perfuming."

But the "extinguishing" spoken of here does not mean doing a few good deeds to cancel out bad seeds. This is āśraya-parāvṛtti—through the deep practice of the paths of seeing and cultivation, afflictions are severed at their root, producing a qualitative transformation of the entire ālaya-vijñāna. This is the domain of noble beings, a fundamental shift in the very foundation—not the arithmetic of adding and subtracting wholesome and unwholesome deeds at the ordinary level.

Then what about the ordinary person?

3.3 Good and Evil Cannot Cancel Each Other Out: Ten Good Deeds Cannot Erase One Evil Deed

Many people hold a deep-rooted misconception: "If I did one bad thing today and planted one evil seed, then if I go and do ten good things, won't that 'cover it over'?"

No.

Ten wholesome actions will indeed form ten wholesome seeds in your ālaya-vijñāna—that much is true. But those ten wholesome seeds cannot cancel that one unwholesome seed. Wholesome seeds are wholesome seeds; unwholesome seeds are unwholesome seeds. They each exist independently, each awaiting their own conditions to ripen. This is precisely the meaning of "determinacy of nature" (svabhāva-niyata) and "attracting its own fruit" (sva-phala-ākṣepin) among the six characteristics: wholesome causes can only attract wholesome fruit, unwholesome causes can only attract unwholesome fruit—they cannot be exchanged, they cannot be offset.

The ancient masters said: "Sentient beings fear fruit; bodhisattvas fear cause."¹⁴ The profound meaning lies precisely here. Ordinary beings wait until the fruit manifests before feeling fear, wanting to remedy the situation—but the seed has already been planted. Bodhisattvas exercise caution at the stage of cause, because they know: once planted, no amount of other wholesome actions can cancel it.

Then what can be done? Does planting an unwholesome seed mean it is all over?

No. Return to the mechanism of "affliction-moistening" in Step Four of Chapter II: seeds require the nourishment of afflictions to become activated. "Without affliction-moistening, the karmic seeds wither and perish." If you stop providing the soil for the unwholesome seed to grow—if you cease creating the same type of unwholesome karma, if you stop nourishing it with afflictions—then although the seed remains, it lacks the conditions for ripening (pratyayāpekṣin), and the time before it bears fruit stretches out enormously, to the point where it becomes exceedingly difficult for it to manifest.

Therefore, the correct attitude is: after committing an unwholesome action, stop. Do not continue. Do not give it any more soil. The purpose of this is not to eliminate the unwholesome seed—that is impossible—but to prevent the unwholesome fruit from manifesting quickly. Meanwhile, the ten wholesome seeds you have planted will each attract wholesome fruit when their respective conditions are met.

This is why the Buddha taught "cease all evil, cultivate all good" (諸惡莫作，眾善奉行)—first stop evil, then practice good. The order cannot be reversed.

3.4 Present Karma → Future You: What Are You Planting Now?

Having established the mechanism of "past karma → present you," the question turns around—

What seeds are you planting right now for the future you?

Not tomorrow. Not next year. Not the next ten years. But the you of future lives.

The Cheng Weishi Lun tells us explicitly: the vipāka-cause "is distant from its fruit" (去果相遠)¹⁵—from planting to fruition, seeds can span enormously long periods of time, even multiple lifetimes. Every single action of body, speech, and mind that you perform today is perfuming your ālaya-vijñāna, depositing seeds. These seeds will, in some lifetime, at some moment when conditions are met, ripen into your vipāka-fruit.

The farmer understands this principle, which is why he willingly tills the soil and plants his seeds. He does not ask, "I planted this tree—why is there no fruit to eat today?" Because he knows: seeds require time—pratyayāpekṣin, dependence on conditions.

The question is: do you know this?

IV. Interdisciplinary Convergence: The Structural Correspondence of Epigenetics

4.1 Genes Are Not Destiny

Modern biology once believed that DNA determined everything—your genetic sequence was written, and your health, constitution, and even personality were fixed. This view began to shake after the completion of the Human Genome Project in 2003. Scientists discovered that monozygotic twins with identical genetic sequences could develop drastically different health outcomes over the course of their lives.¹⁶

The reason lies in epigenetics.

Epigenetics studies how gene expression can be altered by environment, behavior, diet, stress, and other factors—without changing the DNA sequence itself. DNA methylation and histone modification are the two primary epigenetic mechanisms—they function like "switches" on genes, capable of activating or silencing certain genes.¹⁷

More importantly, some epigenetic changes can be transmitted across generations—parental life experiences (famine, stress, dietary habits) can influence gene expression in children and even grandchildren.¹⁸

4.2 Structural Correspondence (⚠️ Strictly Delimited)

A clear disclaimer must be stated here: epigenetics studies molecular mechanisms at the material level; Yogācāra seed theory describes causal mechanisms at the level of consciousness. The two are ontologically entirely distinct. What this paper draws upon is solely the correspondence in structural form, as a modern entry point for understanding seed theory:

✅ Doctrinally supportable: both systems describe a causal structure of "fixed foundation but variable expression." ⚠️ Analogical hypothesis: epigenetics is a molecular mechanism; seed theory is a consciousness mechanism—they must not be conflated. ❌ Logically erroneous: "seeds are DNA," "karma is a kind of gene"—these are category errors.

4.3 Why This Analogy Is Better Than "DNA"

If we used only "karma is like DNA," it would imply fatalism—the DNA sequence is fixed, and you cannot change it. But epigenetics tells us: the sequence is fixed, but expression is variable. This perfectly corresponds to the two faces of seed theory:

• You cannot turn a wholesome seed into an unwholesome seed (determinacy of nature, like the genetic sequence)
• But you can change which seeds are activated and which are silenced (dependence on conditions + the affliction-moistening mechanism, like epigenetic switches)

This is why practice works—you are not "eliminating" past karmic seeds (that is impossible); you are changing the conditions under which they become activated. Severing afflictions is turning off the "switch" for unwholesome seeds.

V. Middle Way Corrections

❌ Misreading One: Fatalism

"My current suffering is all from past-life karma. I cannot change anything."

Correction: The seed characteristic of "dependence on conditions" (pratyayāpekṣin) explicitly negates fatalism—seeds must await conditions before they can bear fruit. If you change the conditions (through practice and severing afflictions), seeds will not bear fruit even if they still exist ("the karmic seeds wither and perish"). Epigenetics similarly tells us: genes are not destiny; environment and behavior can alter gene expression.

❌ Misreading Two: Omnipotence of Will

"As long as I practice diligently, I can change all karmic retribution."

Correction: The seed characteristics of "determinacy of nature" (svabhāva-niyata) and "attracting its own fruit" (sva-phala-ākṣepin) establish irreversible boundaries—wholesome causes can only produce wholesome fruit, unwholesome causes can only produce unwholesome fruit; they cannot be exchanged. You can weaken the force of an unwholesome seed, but you cannot transform it into a wholesome seed. An apple cannot turn back into a seed. Fruit that has already ripened must be fully experienced.

❌ Misreading Three: Causal Abuse

"He is poor because he did not practice generosity in a past life. He deserves it."

Correction: This is the most dangerous misapplication. Causality is a tool for observing oneself, not a weapon for judging others. The Buddha taught causality so that you would ask "what causes am I planting right now?"—not so that you could pronounce judgment on others: "they must have planted such-and-such a cause." The first foundation in the four foundations of mindfulness is "contemplation of the body"—and the body contemplated is one's own, not another's.

VI. Conclusion: Planning for the You of Future Lives

The argument of this paper can be compressed into three statements:

1. The past you planted causes, and they became the present you—karma perfumed seeds, which transmitted continuously and attracted vipāka-fruit.
2. The present you is planting causes right now, and they will become the future you—every single action of body, speech, and mind is perfuming your ālaya-vijñāna.
3. You can choose what to plant—the "determinacy of nature" of seeds cannot be changed, but "dependence on conditions" can. Practice is the act of changing conditions.

A farmer does not ask "why did I plant rice but have no rice to eat today." He knows: sow, water, wait. Causality does not deceive, but causality requires time.

Earlier papers in this series argued: the mental factor of manaskāra enables you to become aware of what you are doing, and then to turn.¹⁹

This paper follows with the next question: after you turn, where do you go?

The answer is: for the you of future lives, plant every wholesome seed you can.

This life is so short. Your every thought, every word, every action is determining the you of future lives—what you look like, where you live, whom you meet, how much freedom you have. This is not a threat; it is an invitation. The Buddha is not trying to frighten you. He is telling you: you have the ability to plan for yourself.

But the premise is—you must, like the farmer, plant first.

References

I. Primary Buddhist Sources 佛教原典

• 《雜阿含經》Saṃyuktāgama, trans. Guṇabhadra, Taishō vol. 2, No. 0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗.
• 《成唯識論》Cheng Weishi Lun (Vijñaptimātratāsiddhi), composed by Dharmapāla et al., trans. Xuanzang, Taishō vol. 31, No. 1585《成唯識論》Vijñaptimātratā-siddhi-śāstraT31, No. 1585View on CBETA online reader ↗.
• 《攝大乘論釋》(無性釋) Mahāyānasaṃgrahabhāṣya (Asvabhāva's commentary), trans. Xuanzang, Taishō vol. 31, No. 1598《攝大乘論釋》(無性、玄奘譯)Mahāyānasaṃgraha-bhāṣya (Asvabhāva, Xuanzang tr.)T31, No. 1598View on CBETA online reader ↗.
• 《大乘阿毘達磨集論》Abhidharmasamuccaya, composed by Asaṅga, trans. Xuanzang, Taishō vol. 31, No. 1605《大乘阿毘達磨集論》AbhidharmasamuccayaT31, No. 1605View on CBETA online reader ↗.
• 《大乘起信論疏》Dasheng Qixin Lun Shu (Commentary on the Awakening of Mahāyāna Faith), by Fazang, Taishō vol. 44, No. 1846《大乘起信論義記》T44, No. 1846View on CBETA online reader ↗.
• 《辯中邊論》Madhyāntavibhāga (Paramārtha's translation), composed by Vasubandhu, trans. Paramārtha, Taishō vol. 31, No. 1595《攝大乘論釋》(真諦譯)Mahāyānasaṃgraha-bhāṣya (Paramārtha tr.)T31, No. 1595View on CBETA online reader ↗.
• 《大方廣佛華嚴經》(八十卷本) Avataṃsaka Sūtra (80-fascicle edition), trans. Śikṣānanda, Taishō vol. 10, No. 0293《大方廣佛華嚴經》(四十華嚴)Gaṇḍavyūha (40-fascicle, including the Ten Vows)T10, No. 293View on CBETA online reader ↗.
• 《八識規矩頌》Bāshí Guījǔ Sòng (Verses on the Eight Consciousnesses) and commentaries, Taishō vol. 45, No. 1865《八識規矩補註》T45, No. 1865View on CBETA online reader ↗.
• 《阿毘達磨俱舍論》Abhidharmakośabhāṣya, composed by Vasubandhu, trans. Xuanzang, Taishō vol. 29, No. 1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗.
• 《大般涅槃經》Mahāparinirvāṇa Sūtra, trans. Dharmakṣema, Taishō vol. 12, No. 0374《大般涅槃經》T12, No. 374View on CBETA online reader ↗.

II. Modern Scholarship 現代學術著作

• Carey, N. The Epigenetics Revolution: How Modern Biology Is Rewriting Our Understanding of Genetics, Disease, and Inheritance. Columbia University Press, 2012.
• Jablonka, E. and Lamb, M. J. Evolution in Four Dimensions: Genetic, Epigenetic, Behavioral, and Symbolic Variation in the History of Life. MIT Press, 2014.
• Yehuda, R. et al. "Holocaust Exposure Induced Intergenerational Effects on FKBP5 Methylation." Biological Psychiatry 80.5 (2016): 372–380.

III. Sūtra & Śāstra Index 經論索引

Cross-Reference Index for Paper Series

Footnotes

This paper is published under CC BY-NC-SA 4.0. All cited sources are openly documented, the argument is presented in full, and all scrutiny and critique are welcome.