Measuring Fruit by Subtraction

Why the Four Śrāmaṇya-phalas Are Defined by What Is Severed, Not by What Is Felt

中文主題：斷結量果——四沙門果何以非以證受為量

I. The Question

Picture a practitioner of many years who can settle into deep absorption, for whom luminous experience arises readily on the cushion. He asks himself: Have I reached a fruit? Now picture a second practitioner who has never tasted a moment of meditative bliss, whose concentration is dry — yet who, on some ordinary afternoon, finds that the conviction "the self-as-body-view is false" has become, for him, beyond the reach of doubt and beyond the possibility of reversal. Which of the two stands closer to stream-entry?

Contemporary meditation culture almost instinctively bets on the first. We speak in the idiom of states: how deep the absorption, how bright the sign, how vast the spaciousness. Experience becomes the currency of progress, and a fruit comes to seem like a medal automatically redeemed once experience accumulates past some threshold. The intuition is so natural that few pause to ask the prior question: by what does the canon itself define a fruit?

The thesis of this paper is a single sentence, and it collides head-on with that intuition: the four śrāmaṇya-phalas are not measured by attainment felt, but by fetters severed. When the Buddha defines the stream-enterer, He does not say "one who has attained a certain radiance"; He says three fetters severed. When He defines the arahant, He does not say "one who abides in a certain great bliss"; He says greed, hatred, and delusion utterly ended, every defilement utterly ended. The ruler of the fruits is, from first to last, a subtraction — it measures what is gone, not what is added. The second practitioner above, dry in concentration yet irreversibly done with self-view, displays precisely the mark of entering the stream that the canon recognizes; deep absorption and luminosity are nowhere listed as defining terms of a fruit.

This is not a matter of rhetorical preference. It bears on how the entire path is understood. If fruit is measured by experience, the path is a road of accumulation — progress is flickering, can advance and regress, and depends heavily on individual endowment (those with a gift for concentration enjoy an unfair head start). If fruit is measured by fetters, the path is a road of dismantling — each fruit is strictly defined by which fetters stand permanently severed: irreversible, checkable, and decoupled from any talent for absorption. The whole of this division — the Realization axis, The Four Śrāmaṇya-phalas — rests on this subtraction. The present paper is the foundation stone: its task is to make plain why it is a subtraction.

The argument proceeds in three moves. Section II lays out the canonical basis, showing how the Buddha and the commentator positively define the four fruits by severance. Section III is the core argument, establishing in three layers why subtraction is the sole fitting ruler — the metaphysical floor (the fruit's substance is cessation), the negative case (the wisdom-liberated arahant needs no absorption), and irreversibility (subtraction does not regress). Section IV would ordinarily turn to interdisciplinary convergence; here I deliberately omit it, for reasons given in Section VI. Section V offers middle-way corrections, clearing away common misreadings. Section VI concludes.

II. The Canonical Basis

2.1 The Buddha defines the four fruits by severance, head-on

The most direct passage stands in the Saṃyukta-āgama, fascicle 29. The Buddha does not circle the matter; He defines each of the four fruits, one by one, by which fetter or defilement is ended:

何等為沙門果？謂須陀洹果、斯陀含果、阿那含果、阿羅漢果。何等為須陀洹果？謂三結斷。何等為斯陀含果？謂三結斷，貪、恚、癡薄。何等為阿那含果？謂五下分結盡。何等為阿羅漢果？謂貪、恚、癡永盡，一切煩惱永盡。¹

"What are the fruits of recluseship? The fruit of the stream-enterer, of the once-returner, of the non-returner, of the arahant. What is the fruit of the stream-enterer? The severing of three fetters. What is the fruit of the once-returner? The three fetters severed, and greed, hatred, delusion thinned. What is the fruit of the non-returner? The five lower fetters exhausted. What is the fruit of the arahant? Greed, hatred, delusion forever ended; all defilements forever ended."

Notice the grammatical form. This is a set of definitions — "What is X-fruit? It is…" — and the predicate, without exception, is severing or exhausting. Not once does it read "the stream-enterer is one who attains some state." The fruit is defined here less like reaching an altitude than like taking down a series of walls: the stream-enterer takes down three, the non-returner five, the arahant down to nothing left to take. This is the clearest scriptural evidence of subtraction.

The names and number of the four fruits are fixed by separate testimony. The Madhyama-āgama, fascicle 21: 「為汝說四沙門果，須陀洹、斯陀含、阿那含、最上阿羅漢果」 — "I shall teach you the four fruits of recluseship: stream-enterer, once-returner, non-returner, and the supreme fruit of the arahant."² The line states only the count and the names, but it supplies the frame for what is being measured in 2.1 — the four fruits are the four graduation-marks of this single subtraction.

2.2 The commentators inherit the measure

The Abhidharma treatises take over this metric wholesale. The Abhidharmakośa, fascicle 24 (Chapter on the Noble Ones), quotes a sūtra and develops it:

由此契經言：云何一來果？謂斷三結薄貪瞋癡。云何不還果？謂斷五下結。³

"As a sūtra says: What is the once-returner's fruit? The severing of three fetters together with the thinning of greed, hatred, delusion. What is the non-returner's fruit? The severing of the five lower fetters."

Vasubandhu marks the citation explicitly — "as a sūtra says" — signalling that he is not minting a new criterion but quoting the Buddha's own teaching. The once-returner's fruit is three fetters severed plus the thinning of greed-hatred-delusion; the non-returner's fruit is the five lower fetters severed. Treatise and discourse use one and the same ruler.

2.3 The arahant's mark is itself a subtraction

The self-declaration formula at the summit of the four fruits — the arahant's — is likewise cast in the language of subtraction. The Pāli runs Khīṇā jāti, vusitaṁ brahmacariyaṁ, kataṁ karaṇīyaṁ, nāparaṁ itthattāyā,⁴ which the Chinese Āgamas habitually render 「我生已盡，梵行已立，所作已辦，不受後有」 — "Birth is exhausted; the holy life has been lived; what was to be done is done; there is no more coming to any state of being." The two anchors of the formula — the opening birth is exhausted (khīṇā jāti) and the closing no more coming to being (nāparaṁ itthattāya) — are both phrased as negation: already exhausted, no longer. The arahant does not declare "I have attained some vast radiance"; he declares "here, the fuel of saṃsāra is spent." Even the highest fruit's self-verification is, grammatically, a subtraction.

⚠️ A note on the bilingual track. Of the Pāli citations in this paper, only the arahant formula (SN 22.59; PTS: SN iii 66) has been verified against the project's Pāli vault and may carry a PTS reference. The definitional formulae for "three fetters → stream-enterer" and "five lower fetters → non-returner" have no Pāli source-text yet ingested into the vault; the exposition therefore relies on the Chinese Āgamas as primary witness, with the Pāli parallels to be supplied on the dual track later. No PTS reference is fabricated here. (See Section V.)

III. The Core Argument

Section II has established as fact that the canon defines the four fruits by severance. This section answers the deeper question: why is severance the sole fitting ruler, and attainment not? In three layers.

3.1 The metaphysical floor: the fruit's substance is cessation, so to measure by severance is to measure the fruit itself

The most easily overlooked, and most decisive, layer is this: "measuring fruit by severance" is not a criterion imposed upon the fruit from outside, but a measure taken directly upon the fruit's own substance. The Kośa, in the same chapter, continues just after the passage cited above:

又世俗道所得擇滅，無漏斷得所任持故，由此力所持退不命終故，亦得名為沙門果體。⁵

"Moreover, the cessation-through-discrimination obtained even by the mundane path, because it is sustained by the uncontaminated acquisition-of-severance… is also called the very substance of the fruit of recluseship."

The load-bearing terms are the substance of the fruit of recluseship (沙門果體) and cessation-through-discrimination (擇滅, pratisaṃkhyā-nirodha). Cessation-through-discrimination is the unconditioned cessation of a defilement, realized by the power of discriminating wisdom — not a psychological state that arises, but the unconditioned fact that a given defilement stands severed. The treatise says: the substance of a fruit simply is this cessation.

This sentence sets the whole argument on bedrock. If the fruit's substance is cessation, then "a given fruit" just is "the cessation of certain defilements." Measuring fruit by severance is therefore not the application of some external rule to the fruit — severance is the fruit's own body. It is like asking "how much space has this room been cleared of": the answer can only be given in terms of what clutter has been carried out, because space, as space, just is the absence of clutter. A fruit, as a fruit, just is the severance of fetters.

The reason measuring by experience is a category error now comes into focus. Experience — bliss, luminosity, the texture of absorption — is a conditioned, arising-and-passing mental factor. It is not the substance of any fruit at all. To gauge the unconditioned cessation by the conditioned feeling is to take a thermometer to a length: the scale and the thing measured belong to different orders.

3.2 The negative case: the wisdom-liberated arahant needs no absorption — direct proof that fruit does not hang on experience

One might still object: granted the definitions use severance, might experience nonetheless be a necessary concomitant of severance, so that measuring by experience would only be an indirect way of measuring severance? The Susīma episode of the Saṃyukta-āgama flatly refutes this.

The story: the wanderer Susīma, having gone forth in order to steal the Dharma, hears a number of monks declare of themselves "birth is exhausted… there is no more coming to any state of being." He asks whether they have attained the four absorptions, the formless attainments, the bodily-witness liberations. To each the monks answer no. Baffled, Susīma presses:

云何尊者所說不同，前後相違。云何不得禪定而復記說？⁶

"How is it that what the venerable ones say is inconsistent, contradicting itself front and back? How can you declare [final knowledge] without having attained absorption?"

The monks' reply is a single line: 「我是慧解脫也」 — "I am one liberated by wisdom."⁷ Still uncomprehending, Susīma takes the question to the Buddha. The Buddha's ruling:

彼先知法住，後知涅槃。⁸

"They first know the stability of phenomena [dependent arising]; afterward they know nibbāna."

The weight of this passage can hardly be overstated. It presents a class of arahants — the wisdom-liberated (paññāvimutta) — formally ratified by the Buddha, who explicitly lack absorption and the formless attainments, yet who have truly accomplished the exhaustion of the taints. The Buddha does not rebuke them; He confirms their realization with "first the stability of phenomena, afterward nibbāna." In other words: meditative experience is not a necessary condition for the exhaustion of the taints. A person without deep absorptive experience can be a complete arahant.

This seals off the objection's escape route. Since there exist those with exhausted taints but without deep absorption, there is no necessary tie between experience and fruit; measuring by experience would necessarily misjudge this entire class of noble ones — pronouncing real arahants to be short of the fruit. Measuring by severance suffers no such failure: the wisdom-liberated of the Susīma episode are admitted as arahants precisely because "the fetters are severed, the taints exhausted," regardless of whether they possess absorptive states. The ruler of subtraction can measure them; the ruler of accumulation cannot.

✅ Doctrinally sound: Susīma supplies not merely corroboration of "measure by severance," but a positive counter-example to "experience as a criterion of fruit" — there exists a class of noble ones with fruit but without experience. This fills exactly the pivotal gap of which of the two, severance or experience, serves as the ruler.

3.3 Irreversibility: subtraction does not regress; accumulation can

The third layer brings out a property unique to the subtractive ruler: directionality. The Kośa, fascicle 23, on the turn from approach to fruit:

即前隨信隨法行者，至第十六道類智心名為住果，不復名向。隨前三向今住三果，謂前預流向今住預流果，前一來向今住一來果，前不還向今住不還果。⁹

"The former follower-by-faith and follower-by-Dharma, upon reaching the sixteenth mind — the knowledge-of-the-type-of-the-path — is called 'abiding in the fruit,' no longer 'approaching.' The prior three approaches now abide as three fruits…"

"Abiding in the fruit, no longer approaching" — once the turn from approach to fruit is made, the change is directional and irreversible. Why can it not turn back? Precisely because it is a subtraction. The severed fetter is the cessation-through-discrimination "sustained by the uncontaminated acquisition-of-severance" (cited in 3.1) — an unconditioned reality; and the unconditioned neither arises nor ceases, hence offers no purchase for regression. The stream-enterer is "incapable of falling to lower destinies, bound for nibbāna" not because he has amassed some reservoir of merit (reservoirs deplete), but because those three walls stand permanently demolished, and demolition itself cannot be undone.

By contrast, were fruit measured by experience, irreversibility could not be founded at all. Absorption regresses — today one enters the fourth jhāna, tomorrow, scattered, one cannot; experience fades — today luminous, tomorrow dull. Take a regressible thing as ruler, and the fruit becomes regressible with it; then the firm doctrinal constraint "the stream-enterer does not fall back" loses its ground. Only subtraction — measuring fetters already permanently severed — can sustain irreversibility in principle. This is the third irreplaceable advantage of severance over experience.

Taken together, the three layers — the fruit's substance is cessation (so severance measures the fruit's own body, not an external rule); the wisdom-liberated need no absorption (so experience is not a necessary concomitant and cannot serve as ruler); subtraction does not regress (so only severance can sustain the fruit's irreversibility) — jointly establish the thesis: the four śrāmaṇya-phalas are measured by severance alone.

IV. Interdisciplinary Convergence

(This paper deliberately omits the interdisciplinary-convergence section; the rationale and the explicit skip-declaration appear in Section VI. The omission is sanctioned by the series' editorial convention: where no deep analogy holds, cut the section and state the skip in the conclusion.)

V. Middle-Way Corrections

This section clears away three common misreadings bearing on the thesis.

❌ Misreading 1: "Measuring by severance disparages absorption." The paper holds that experience cannot serve as the ruler of fruit; it in no way holds that absorption is useless. The Buddha praises the yoking of serenity and insight throughout; the both-ways-liberated (ubhatobhāgavimutta) possesses both the cessation-attainment and the exhaustion of taints, bearing an adornment beyond that of the merely wisdom-liberated. Absorption is a powerful provision for reaching the fruit, of great benefit both for pleasant abiding here and now and for the depth and breadth of wisdom. What the paper denies is solely the misplacement of "taking the depth of absorptive states as the ruler of the fruit." Provision (the path) and ruler (the definition of the fruit) are two distinct things — one may prize the former highly while insisting the latter is measured by severance alone.

⚠️ Correction 2: Susīma must not be inflated into "absorption is dispensable" or "concentration may be discarded wholesale." Susīma establishes "there exist arahants who do not depend on deep absorption" — a counter-example to "experience as a necessary condition of fruit," and that is weight enough. But it must not be over-extended into "concentration may be discarded entirely." The wisdom-liberated still require the one-pointedness and the yathābhūta-knowledge on which the path of seeing rests; the words "first the stability of phenomena, afterward nibbāna" presuppose a foundation of concentration-and-wisdom for the knowledge-of-the-stability-of-phenomena — only that the fourfold and eightfold attainments are not made necessary. To read Susīma as "practice needs no concentration at all" is the opposite extreme, and not the sūtra's intent. The paper takes its rigorous conclusion — fruit does not hang on experience — and not the exaggerated version.

⚠️ Correction 3: "Severance" is not a checklist of feelings a practitioner may self-certify. Measuring by severance measures the unconditioned cessation, not a felt report of the form "I feel that such-and-such defilement is gone" — the latter slides right back into experience. Whether a fetter is severed is judged by the path of seeing, by yathābhūta-knowledge, not by self-feeling. The monks' self-declaration in the Susīma episode is made on the basis of the knowledge of the exhaustion of taints, not "I feel I have severed them." So the ruler of subtraction, though objective, is read only by right knowledge, not gauged by ordinary sentiment. In establishing "severance as ruler," the paper must equally guard against its degeneration into "measuring fruit by another kind of feeling — the feeling of having-severed," a covert experience-doctrine in disguise.

VI. Conclusion

Essential restatement. The four śrāmaṇya-phalas are measured not by experience but by severance. On the textual side, the Saṃyukta-āgama and the Abhidharmakośa define the four fruits head-on, and the ruler is uniformly "a given fetter or defilement ended" — a subtraction, not an accumulation. On the doctrinal side, three layers support this sole ruler: the fruit's substance is cessation, so severance measures the fruit's own body rather than an external standard (3.1); the wisdom-liberated of the Susīma episode exhaust the taints without absorption, establishing that experience is not a necessary concomitant and cannot serve as ruler (3.2); and only subtraction can sustain the fruit's irreversibility, because the severed fetter is an unconditioned cessation with no principle of regress (3.3).

Guidance for practice. A practitioner who would take stock of himself by this measure should exchange the question "what state have I attained?" for "here, which wall has truly come down — and come down in a way that can never be rebuilt?" The former question pulls one toward the comparison of experiences and the anxiety of gain and loss; the latter pulls one toward the faithful discernment of the fetters. For the practitioner of weak concentrative faculty especially — dry in absorption, forever suspecting "have I made no progress at all?" — this paper is a remedy: your progress is not entered in the ledger of experience, but in whether the three walls of self-view, doubt, and rite-and-ritual-grasping have loosened, or even permanently fallen, here, in you.

Open questions. This paper deliberately cut the Section IV interdisciplinary convergence, because the subtractive structure of "progress measured by loss" finds, in the growth-models of psychology and the learning-curves of neuroscience, a dominant metaphor of acquisition / increase — the exact inverse of the Dharma's dismantling / severance; a forced analogy would lose the truth of the matter, so better to leave it out. A genuine question worth later treatment: is there some worldly counterpart-model of "advance-by-diminishment" (the "unloading" frame of addiction-withdrawal or trauma-resolution, say) robust enough to bear a three-layered convergence with the severance structure (likeness / fundamental difference / irreducibility declaration)? The question is left to a later paper of this axis or another. Further, the master-thesis of "subtraction" set out here must be tested in the fruit-by-fruit unfolding to come: Paper 2 will treat how approach and fruit become two successive phases of this one subtraction; from Paper 3 onward, each wall is verified in turn — why these three fetters fall first, why the five lower fetters form a single threshold. Whether the master-thesis withstands the fine-grained account of each fruit is the real test of this division.

Notes

References

I. Buddhist Primary Sources

• Saṃyukta-āgama (雜阿含經). Trans. Guṇabhadra. T02, no. 0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗. (Fascicle 14, the Susīma sūtra; fascicle 29, the definition of the four śrāmaṇya-phalas.)
• Madhyama-āgama (中阿含經). Trans. Gautama Saṅghadeva. T01, no. 0026《中阿含經》MadhyamāgamaT1, No. 26View on CBETA online reader ↗.
• Abhidharmakośa-bhāṣya (阿毘達磨俱舍論). By Vasubandhu, trans. Xuanzang. T29, no. 1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗. Chapter on the Noble Ones (分別賢聖品).
• Saṃyutta-nikāya. Mahāsaṅgīti Tipiṭaka Buddhavasse 2500 ed. (SN 22.59 Anattalakkhaṇa-sutta, PTS: SN iii 66; SN 12.70 Susīma-sutta, PTS: SN ii 119–128, dual-track collation pending.)

II. Modern Scholarship

(This paper cites no modern scholarship; the argument rests entirely on Buddhist primary sources, following the open-source spirit of "return to the source." The interdisciplinary-convergence section having been cut, no corresponding modern literature appears.)

III. Index of Canonical Citations

Point	Source	CBETA id
Four fruits defined head-on by severance / exhaustion	SĀ fasc. 29	T02n0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗_p0205c02
Names and number of the four fruits	MĀ fasc. 21	T01n0026《中阿含經》MadhyamāgamaT1, No. 26View on CBETA online reader ↗_p0563c12
Kośa quoting sūtra: once-returner = 3 fetters + thinning; non-returner = 5 lower fetters	Kośa fasc. 24	T29n1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗_p0128b13
Substance of the fruit = cessation-through-discrimination (unconditioned)	Kośa fasc. 24	T29n1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗_p0128b16
Wisdom-liberated lack absorption / formless attainment	SĀ fasc. 14 (Susīma)	T02n0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗_p0097a21, a24
"First the stability of phenomena, afterward nibbāna"	SĀ fasc. 14 (Susīma)	T02n0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗_p0097b06
Sixteenth mind: abiding in fruit, no longer approaching	Kośa fasc. 23	T29n1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗_p0122c08
Arahant formula (Pāli)	SN 22.59	PTS: SN iii 66

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Paper: SRAMANA-P01 · 斷結量果 · The Four Śrāmaṇya-phalas · Part 1 · The Measure Author: 釋慧鏡 (Shi Huijing) · Project: 指月 / Pointing-at-the-Moon · Series: The Realization Paths（行 階位歷程） License: CC BY-NC-SA 4.0 CBETA collation: 全文引用均依 CBETA 電子佛典核校（《雜阿含經》T0099、《中阿含經》T0026、《阿毘達磨俱舍論》T1558）。Pāli 引文採 PTS reference 雙軌標示（vault 未收者俟後補）。 Repository: https://github.com/pointing-at-the-moon/realization-paths

Footnotes

1. Saṃyukta-āgama, fascicle 29, T02n0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗_p0205c02. Collated against the CBETA digital canon. ↩

2. Madhyama-āgama, fascicle 21, T01n0026《中阿含經》MadhyamāgamaT1, No. 26View on CBETA online reader ↗_p0563c12. ↩

3. Abhidharmakośa-bhāṣya, fascicle 24 (Chapter on the Noble Ones, part 3), T29n1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗_p0128b13. By Vasubandhu, trans. Xuanzang. ↩

4. The arahant's self-verification formula; Pāli Khīṇā jāti, vusitaṁ brahmacariyaṁ, kataṁ karaṇīyaṁ, nāparaṁ itthattāyā, in the Anattalakkhaṇa-sutta (SN 22.59; PTS: SN iii 66; Mahāsaṅgīti ed.). The Chinese Āgamas habitually render it 「我生已盡，梵行已立，所作已辦，不受後有」. ↩

5. Abhidharmakośa-bhāṣya, fascicle 24, T29n1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗_p0128b16. 擇滅 = pratisaṃkhyā-nirodha, the unconditioned cessation realized by the power of discriminating wisdom. ↩

6. Saṃyukta-āgama, fascicle 14 (the Susīma sūtra), T02n0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗_p0097a24. ↩

7. Ibid., T02n0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗_p0097a21. ↩

8. Ibid., T02n0099《雜阿含經》Saṃyukta-āgamaT2, No. 99View on CBETA online reader ↗_p0097b06. The Pāli parallel to "first know the stability of phenomena, afterward nibbāna" is the Susīma-sutta (SN 12.70; PTS: SN ii 119–128); that Pāli source is not yet ingested into the project vault, to be supplied on the dual track later. ↩

9. Abhidharmakośa-bhāṣya, fascicle 23 (Chapter on the Noble Ones), T29n1558《阿毘達磨俱舍論》Abhidharmakośa-bhāṣyaT29, No. 1558View on CBETA online reader ↗_p0122c08. ↩