Chapter 15 · 優婆塞戒經 · 淨戒品第十五 · How an already-received precept actually stays pure

The Discipline Behind the Discipline

Chapter 14 conferred the precepts. This chapter asks the next, harder question: now that they are received, what actually keeps them pure? The Buddha's answer to Shansheng refuses any single formula. Instead it unfolds list after nested list — threes, fours, fives, even a nine — over sixty distinct virtues in all, moving from the three roots of faith, causation, and understanding, through fearless giving and a willingness to bear suffering without regret, up to the four immeasurable states themselves. It closes on a plain, unsentimental distinction: this purity is not hard for a monastic to sustain, but for someone still living in a household, entangled in the world's own conditions, it genuinely is.

Translator: Ru-Yi Meditation Center Status: complete — all 28 chapters translated Source: Taishō T24, no. 1488 Commentary guide: Grand Master Taixu's Lecture Notes on the Sutra on Upasaka Precepts (優婆塞戒經講錄)

1. Milestone: Shansheng's Question

Having just received the precepts in the previous chapter, Shansheng now asks the natural next question — not how to obtain them, but how to keep them from decaying into a merely nominal vow.

Chinese Source

善生言:「世尊!有人受持如是戒已,云何當令是戒淨耶?」

Ru-Yi Translation

Shansheng said: "World-Honored One, once a person has received and undertaken these precepts, how then can this discipline be made pure?"

Reading note — after Grand Master Taixu

Taixu's own comment on this line is minimal — "clear from the text itself," as he puts it — and he reserves all his interpretive effort for the answer that follows. That restraint is itself worth noticing: this is a working bodhisattva's question, not a beginner's. It presupposes the precepts already exist and asks only how a vow already made is kept from quietly decaying into words without substance.

2. Milestone: Three Roots — Faith, Causation, Understanding

The Buddha's answer opens with the shortest and most foundational list in the entire chapter — three factors from which nearly everything that follows can be read as an elaboration.

Chinese Source

佛言:「善男子!有三法能淨是戒:一者、信佛、法、僧,二者、深信因果,三者、解心。

Ru-Yi Translation

The Buddha said, "Good son! There are three factors that can purify this discipline: first, faith in the Buddha, the Dharma, and the Sangha; second, deep faith in cause and effect; third, an understanding mind.

Reading note — after Grand Master Taixu

Taixu insists all three parts of the first factor are needed together. Believing only that a teaching agrees with truth, without reference to who taught it, is faith in the Dharma without yet being faith in the Buddha; recognizing that everything flowing from a Buddha's own ocean of realization agrees with truth is faith in the Buddha that carries faith in the Dharma along with it. The Sangha — the community of worthy and sagely practitioners actually walking the path from ordinary being to Buddhahood — must be trusted too; faith resting on only one or two of the three, he says, is never complete.

On deep faith in causation, he turns to the well-known story of an old Chan teacher who, asked whether a person of great cultivation still falls under the law of cause and effect, answered "no" — and was reborn in a wild fox's body for five hundred lifetimes as a direct consequence of that single wrong word. Only when a later master corrected the answer to "not obscured by causation, not blind to it" was the fox released. Taixu draws the lesson directly: shallow cleverness is exactly what causation punishes, and no one who genuinely, deeply trusts cause and effect fails to keep the precepts clean.

On "an understanding mind," he reads it as penetrating clarity about the Buddha, the Dharma, the Sangha, dependent origination, and the emptiness of inherent nature — the three approaches to liberation through emptiness, signlessness, and wishlessness among them. He quotes an old Chan saying he treats as this understanding's very definition: "what was originally empty is exactly what repays the karmic debt; repaying the karmic debt is exactly what was originally empty." Genuine understanding never uses emptiness as an excuse to ignore karma, and never lets karma's reality deny that it is, at the same time, empty.

3. Milestone: Loving-Kindness in Action

Two further lists extend the three roots outward — from an inwardly cultivated feeling to its hardest real test: benefiting an enemy first, before anyone easier to love.

Chinese Source

「復有四法:一者、慈心,二者、悲心,三者、無貪心,四者、未有恩處先以恩加。

Ru-Yi Translation

"There are, moreover, four factors: first, a mind of loving-kindness; second, a mind of compassion; third, a mind free of greed; fourth, extending kindness first, even toward someone from whom no kindness has yet been received.

Chinese Source

「復有五法:一者、先於怨所,以善益之,二者、見怖懅者,能為救護,三者、求者未索,先開心與,四者、凡所施處,平等無二,五者、普慈一切,不依因緣。

Ru-Yi Translation

"There are, moreover, five factors: first, benefiting even one who bears you enmity, with goodness, first of all; second, rescuing and protecting whoever is seen to be afraid; third, opening one's heart to give before a petitioner has even asked; fourth, giving to every recipient with total equality, without exception; fifth, extending loving-kindness universally to all, without depending on any particular condition.

Reading note — after Grand Master Taixu

These two lists move in a single direction: from feeling to action, and from convenient objects of care to the least convenient one. The four-part list is largely internal — a mind cultivated toward loving-kindness, compassion, freedom from greed, and a willingness to extend kindness before it is owed. The five-part list then tests that mind against real cases, and deliberately begins with the hardest one: not a stranger, not a friend, but one's own enemy. Only after that hardest case does it move to the frightened, to those who have not yet asked, and finally to a truly unconditioned, universal impartiality — treating generosity toward an enemy not as an advanced technique reserved for later, but as the first real-world proof that the inward cultivation named just before it was genuine.

4. Milestone: Courage That Does Not Flinch

A single four-part list turns from generosity toward others to the bodhisattva's own resolve, addressing the discouragement that can creep in once the sheer scale of the path becomes apparent.

Chinese Source

「復有四法:一者、終不自輕言我不能得菩提果;二者、趣菩提時,其心堅固;三者、精進勤修一切善法;四者、造作大事,心不疲悔。

Ru-Yi Translation

"There are, moreover, four factors: first, never belittling oneself by saying, 'I cannot attain the fruit of bodhi'; second, keeping the mind firm and resolute while advancing toward bodhi; third, diligently and energetically cultivating every wholesome dharma; fourth, undertaking great works without the mind growing weary or regretful.

Reading note — after Grand Master Taixu

The opening item — never saying "I cannot attain the fruit of bodhi" — is not incidental. It applies to oneself the same conviction stated elsewhere in the tradition as buddha-nature possessed by every being without exception: to declare the goal permanently out of reach is to contradict that shared nature, not merely to underestimate one's own effort. The three items that follow — firmness of mind, diligence, and an absence of fatigue even before great undertakings — read as the practical discipline that keeps such self-belittling thoughts from ever actually taking hold.

5. Milestone: Teaching by Living It

Two more four-part lists pair conduct with understanding — first the discipline of teaching only what one has already practiced, then the doctrinal ground that keeps such teaching from calcifying into mere moralizing.

Chinese Source

「復有四法:一者、自學善法,學已教人;二者、自離惡法,教人令離;三者、善能分別善惡之法;四者、於一切法不取不著。

Ru-Yi Translation

"There are, moreover, four factors: first, learning wholesome dharmas oneself, and only then teaching them to others; second, abandoning unwholesome dharmas oneself, and teaching others to abandon them as well; third, skillfully discerning wholesome dharmas from unwholesome ones; fourth, neither grasping nor clinging to any dharma whatsoever.

Chinese Source

「復有四法:一者、知有為法無我、我所,二者、知一切業悉有果報,三者、知有為法皆是無常,四者、知從苦生樂,從樂生苦。

Ru-Yi Translation

"There are, moreover, four factors: first, knowing that conditioned dharmas are without self and without anything belonging to a self; second, knowing that every action, without exception, bears its own fruit; third, knowing that all conditioned dharmas are impermanent; fourth, knowing that pleasure arises out of suffering, and suffering in turn arises out of pleasure.

Reading note — after Grand Master Taixu

The first list insists on a strict order — learn, then teach; abandon, then instruct others to abandon — refusing the shortcut of teaching what one has not yet actually practiced. Its final item, grasping and clinging to no dharma whatsoever, keeps even the role of teacher from becoming a new attachment. The second list supplies the view that makes such non-attachment coherent rather than nihilistic: because conditioned things are without a fixed self, and yet karmic action still bears real fruit, and because pleasure and pain generate each other in a turning wheel rather than standing as fixed opposites, a bodhisattva can act, give, and teach without either denying cause and effect or clinging to any of it as permanent.

6. Milestone: Equanimity in Giving

Three three-part lists, read together, describe joy given without a trace of self-interest — non-attachment while giving, giving without seeking any return, and finally a willingness to bear great suffering on others' behalf without regret.

Chinese Source

「復有三法:一者、於諸眾生心無取著,二者、施眾生樂,其心平等,三者、如說而行。

Ru-Yi Translation

"There are, moreover, three factors: first, a mind that grasps at and clings to no being whatsoever; second, giving joy to beings with a mind that remains entirely equal toward all; third, acting exactly as one has spoken.

Chinese Source

「復有三法:一者、能施眾生樂因,二者、所作不求恩報,三者、自知定當得成阿耨多羅三藐三菩提。

Ru-Yi Translation

"There are, moreover, three factors: first, being able to give beings the very causes of joy; second, seeking no repayment of kindness for what one has done; third, knowing for oneself, with certainty, that one will attain unsurpassed, perfect, complete enlightenment.

Chinese Source

「復有三法:一者、為諸眾生受大苦惱,二者、次第受之,三者、中間不息,雖受是苦心終不悔。

Ru-Yi Translation

"There are, moreover, three factors: first, undergoing great suffering and affliction for the sake of all beings; second, undergoing it in due sequence; third, never pausing partway through — and though undergoing such suffering, never in the end feeling regret.

Reading note — after Grand Master Taixu

Read in sequence, these three lists tighten around a single point from three directions. The first insists giving must be free of grasping and applied with strict equality; the second adds that it must expect nothing back, resting instead on the giver's own settled confidence of eventually attaining full awakening; the third takes the same disposition to its furthest edge — real, sequential, sustained suffering undertaken for others' sake, "and though undergoing such suffering, never in the end feeling regret." The point concerns endurance, not numbness: the suffering is real and actually felt, but the resolve behind it does not waver.

7. Milestone: Practicing Before Perfection

A striking pair of three-part lists concedes something the sutra rarely states so plainly: these virtues are undertaken before craving, anger, and delusion have actually been eliminated — practice does not wait for the affliction to disappear first.

Chinese Source

「復有三法:一者、未除愛心,能捨所愛施與他人;二者、未除瞋恚,有惡來加而能忍之;三者、未除癡心,而能分別善惡之法。

Ru-Yi Translation

"There are, moreover, three factors: first, though the mind of craving is not yet eliminated, still being able to give away what one loves to others; second, though anger is not yet eliminated, still being able to endure it when evil is inflicted upon oneself; third, though the mind of delusion is not yet eliminated, still being able to discern wholesome dharmas from unwholesome ones.

Chinese Source

「復有三法:一者、善知方便,能教眾生遠離惡法;二者、知善方便,能教眾生令修善法;三者、化眾生時心無疲悔。

Ru-Yi Translation

"There are, moreover, three factors: first, skillfully knowing the right means to teach beings to keep far from unwholesome dharmas; second, knowing wholesome means to teach beings to cultivate wholesome dharmas; third, feeling neither weariness nor regret while transforming beings.

Reading note — after Grand Master Taixu

This is a distinctively bodhisattva point rather than a claim about sainthood already achieved. Each item in the first list names an affliction still present — "though the mind of craving is not yet eliminated," "though anger is not yet eliminated," "though the mind of delusion is not yet eliminated" — and then names an action performed anyway: giving away what is loved, enduring what is inflicted, discerning good from evil despite the fog. The second list supplies the skillful means by which such imperfect practice still manages to teach and transform others, closing on a mind that stays without fatigue or regret even while carrying afflictions the sutra does not pretend are already gone. Purity of the precepts, on this reading, is not the reward waiting at the end of eliminating every affliction — it is a discipline exercised in the middle of still having them.

8. Milestone: Not Begrudging Body or Life

Two further three-part lists press the same non-attachment toward the most literal possible stakes: one's own body, one's own life, and one's own time, set entirely at the service of others' need.

Chinese Source

「復有三法:一者、為令眾生離身苦時,自於身命心不悋惜;二者、為令眾生離心苦時,自於身命心不悋惜;三者、教化眾生修善法時,自於身命心不悋惜。

Ru-Yi Translation

"There are, moreover, three factors: first, when freeing beings from bodily suffering, begrudging neither one's own body nor one's own life; second, when freeing beings from mental suffering, begrudging neither one's own body nor one's own life; third, when teaching and transforming beings to cultivate wholesome dharmas, begrudging neither one's own body nor one's own life.

Chinese Source

「復有三法:一者、自捨己事,先營他事;二者、營他事時,不擇時節;三者、終不顧慮辛苦憂惱。

Ru-Yi Translation

"There are, moreover, three factors: first, setting aside one's own affairs to attend to the affairs of others first; second, attending to the affairs of others without picking and choosing the time or season; third, never once giving thought to the hardship or anxiety involved.

Reading note — after Grand Master Taixu

The first list repeats a single phrase three times with only the object changed — freeing beings from bodily suffering, from mental suffering, and instructing them in wholesome practice — each time "begrudging neither one's own body nor one's own life." The repetition is itself the point: this is not one dramatic act of self-sacrifice but the same willingness applied, unremarkably, across every category of service. The second list brings that willingness down to the mundane level of scheduling and inconvenience — attending to others' affairs before one's own, at whatever hour it happens to be needed, without weighing the hardship involved. Read together, the two lists refuse to separate a bodhisattva's largest sacrifices from an ordinary willingness to be inconvenienced.

9. Milestone: A Heart Without Envy, A Heart That Remembers

Two three-part lists turn inward again, describing the emotional texture of a mind whose precepts are genuinely pure — free of envy, quick to rejoice, and disproportionately, almost extravagantly grateful.

Chinese Source

「復有三法:一者、心無妬嫉;二者、見他受樂,心生歡喜,三者、善心相續,間無斷絕。

Ru-Yi Translation

"There are, moreover, three factors: first, a mind free of envy and jealousy; second, feeling joy in one's heart at seeing another experience happiness; third, a wholesome mind that continues on, without a single interruption.

Chinese Source

「復有三事:一者、見他少善,心初不忘;二者、毫末之慧,輒思多報;三者、於無量世受無量苦,其心堅固無退轉想。

Ru-Yi Translation

"There are, moreover, three matters: first, never once forgetting even the smallest good one sees in another; second, upon receiving even the slightest kindness, always thinking of how to repay it many times over; third, undergoing immeasurable suffering across immeasurable lifetimes with a mind so firm that it never once entertains the thought of turning back.

Reading note — after Grand Master Taixu

The second list's middle item is easy to read past too quickly: upon receiving even the slightest kindness, always thinking of how to repay it many times over. Paired with never forgetting even the smallest good one sees in another, it describes a mind that runs its moral accounting in the opposite direction from an ordinary one — magnifying what others have done for it, rather than what it has done for others. The list closes by extending that same disproportion across time: enduring immeasurable suffering across immeasurable lifetimes with a mind so firm it never once entertains turning back — gratitude and endurance treated, here, as the same underlying steadiness.

10. Milestone: Refuge for the Refugeless

Two more three-part lists turn the mind's steadiness outward one final time, toward beings who have nowhere else to turn and, more searchingly, toward beings whose own conduct is genuinely evil.

Chinese Source

「復有三法:一者、深知生死多諸過咎,猶故不捨一切作業;二者、見諸眾生無歸依者為作歸依;三者、見惡眾生心生憐愍,不責其過。

Ru-Yi Translation

"There are, moreover, three factors: first, deeply knowing that birth-and-death is fraught with fault after fault, and yet never abandoning any of one's undertakings on that account; second, becoming a refuge for every being seen to have no refuge; third, feeling compassion in one's heart upon seeing an evil being, rather than condemning that being's faults.

Chinese Source

「復有三法:一者、親近善友,二者、聞法無厭,三者、至心諮受善知識教。

Ru-Yi Translation

"There are, moreover, three factors: first, drawing close to good spiritual friends; second, never growing weary of hearing the Dharma; third, wholeheartedly seeking out and receiving the teaching of a good spiritual guide.

Reading note — after Grand Master Taixu

The first list's opening item carries real weight: deeply knowing that saṃsāra is fraught with fault after fault, and yet never abandoning any of one's undertakings on that account. This is not naive optimism about the world but a clear-eyed acceptance of its faults that still refuses to excuse withdrawal from it. Its closing item — meeting an evil being with compassion rather than condemnation — asks for something harder than mere tolerance: not overlooking the wrongdoing, but declining to make the wrongdoer's faults the basis of one's own response. The second list then names the ordinary, unglamorous supports this entire chapter has assumed all along: closeness to good friends, an appetite for the teaching that never wears out, and a willingness to actually receive instruction wholeheartedly rather than merely hear it.

11. Milestone: The Nine-Fold Summary and the Four Immeasurables

The long cascade of lists gathers itself into two closing formulas — a nine-part summary and the classical four immeasurable states — before the chapter turns from listing virtues to explaining the conditions under which this whole purification actually becomes possible.

Chinese Source

「復有九法:遠離三法,三時不悔,平等慧施三種眾生。

Ru-Yi Translation

"There are, moreover, nine factors: keeping far from three faults; feeling no regret across the three times; and giving with wisdom, equally, to three kinds of beings.

Chinese Source

「復有四法,所謂慈、悲、喜、捨。

Ru-Yi Translation

"There are, moreover, four factors, namely: loving-kindness, compassion, sympathetic joy, and equanimity.

Reading note — after Grand Master Taixu

Taixu's own outline treats this pair of lists as a recap rather than material requiring its own separate gloss, and the text bears that reading out: keeping far from three faults, feeling no regret across the three times, giving with wisdom equally to three kinds of beings reads as a compressed restatement of everything the chapter has already said about non-attachment, endurance, and impartial generosity, now organized around the number three that has recurred throughout. The four immeasurables that follow function similarly, as a known, classical container into which the chapter's many specific virtues can all be filed, rather than as one further item standing equal alongside the rest.

12. Milestone: When Purification Actually Becomes Possible

Having listed the virtues themselves, the Buddha now addresses a harder, more practical question: under what actual conditions does a being come to possess them?

Chinese Source

「善男子!菩薩若以淨法淨心,要在二時:一、佛出世時,二、緣覺出時。善男子!眾生善法有三種生:一、從聞生,二、從思生,三、從修生。聞、思二種在二時中,從修生者,不必爾也。

Ru-Yi Translation

"Good son! If a bodhisattva purifies the mind by means of these pure factors, this necessarily occurs at one of two times: first, when a Buddha has appeared in the world; second, when a pratyekabuddha has appeared. Good son! The wholesome dharmas of sentient beings arise in three ways: first, arising from hearing; second, arising from reflection; third, arising from cultivation. The first two — hearing and reflection — occur within those same two times; but that which arises from cultivation does not necessarily require either.

Reading note — after Grand Master Taixu

Taixu's real interpretive addition arrives here. The sutra names two historical conditions — a Buddha present in the world, or a pratyekabuddha present in the world — as the setting in which wholesome dharmas arise "from hearing" and "from reflection." But he stresses that the third path, arising from cultivation, carries no such restriction: once a bodhisattva's own cultivated goodness is actually complete, he writes, that person can keep the precepts pure even without a Buddha or a pratyekabuddha in the world — cultivation-born virtue does not depend on a living teacher's presence to sustain itself, however much it may have depended on one to begin.

This is a quietly significant point for any reader who is not living at a time when a Buddha walks the earth — which is to say, for every reader of this sutra. It locates the actual guarantee of purity not in favorable historical timing, which no one can arrange, but in cultivation actually carried through to completion, which remains available in any age.

13. Milestone: Why the Householder's Path Is Harder

The chapter closes exactly where a list of demanding virtues this long would be expected to close: with an honest acknowledgment of who finds them hardest to sustain, and why.

Chinese Source

「善男子!菩薩二種:一者、在家,二者、出家。出家菩薩如是淨戒,是不為難;在家淨戒是乃為難。何以故?在家之人多惡因緣所纏繞故。」

Ru-Yi Translation

"Good son! Bodhisattvas are of two kinds: first, those who remain in the household life; second, those who have left the household life. For a monastic bodhisattva, purifying the precepts in this way is not difficult; for a householder bodhisattva, purifying the precepts in this way is truly difficult. Why is this so? Because a person still in the household life is bound up by so many evil conditions."

Reading note — after Grand Master Taixu

Taixu's own commentary here largely lets the sutra's words stand on their own, adding little beyond a structural marker — a restraint that is itself worth noticing, since the line needs no elaboration to land. It also states, in miniature, the entire reason this sutra exists as a distinct text within the canon: not to describe an ideal available only to those who have left household life, but to insist that the very same purity, however much harder to sustain amid "the many evil conditions" of a householder's circumstances, remains a real bodhisattva path rather than a lesser one. Everything catalogued across this chapter — the three roots, the giving that does not wait to be asked, the willingness to bear suffering without regret — is offered to Shansheng, a lay disciple, on the explicit premise that it is his to actually practice, not merely to admire from outside.