Eternal, Inconceivable, and the Five Lineages
Mahāmati notices that the Buddha's own domain of self-realized wisdom is called "eternal" and "inconceivable" — the very words the outsiders use for their own doctrines — and asks how the two can possibly differ. The Buddha's answer turns on what each side takes as the cause of its own permanence. From there the sūtra teaches that all dharmas are, in truth, unborn, before turning to a new topic entirely: the five kinds of fixed spiritual lineage that sort every being toward the śrāvaka vehicle, the pratyekabuddha vehicle, the Mahāyāna, an unfixed destiny still open to any of the three, or no fixed lineage at all — the condition, named here for the second time, of the icchantika.
What "Eternal" and "Inconceivable" Actually Mean
爾時，大慧菩薩摩訶薩白佛言：「世尊！世尊所說常及不思議，自覺聖趣境界及第一義境界。世尊！非諸外道所說常不思議因緣耶？」
佛告大慧：「非諸外道因緣得常不思議。所以者何？諸外道常不思議，不因自相成。若常不思議不因自相成者，何因顯現常不思議？
「復次，大慧！不思議若因自相成者，彼則應常。由作者因相故，常不思議不成。大慧！我第一義常不思議。第一義因相成，離性非性，得自覺相故有相。第一義智因故，有因離性非性故。譬如無作虛空，涅槃滅盡故常。如是，大慧！不同外道常不思議論。如是，大慧！此常不思議，諸如來自覺聖智所得，是故常不思議自覺聖智所得應得修學。
「復次，大慧！外道常不思議，無常性。異相因故，非自作因相力故常。
「復次，大慧！諸外道常不思議，於所作性非性無常，見已思量計常。大慧！我亦以如是因緣所作者性非性無常，見已，自覺聖境界，說彼常無因。大慧！若復諸外道，因相成常不思議，因自相性非性，同於兔角。此常不思議，但言說妄想。諸外道輩，有如是過。所以者何？謂但言說妄想，同於兔角，自因相非分。大慧！我常不思議，因自覺得相故，離所作性非性故。常非外性非性無常，思量計常。大慧！若復外性非性無常，思量計常不思議常，而彼不知常不思議自因之相，去得自覺聖智境界相遠。彼不應說。
「復次，大慧！諸聲聞畏生死妄想苦而求涅槃，不知生死、涅槃差別一切性妄想非性。未來諸根境界休息，作涅槃想，非自覺聖智趣藏識轉。是故，凡愚說有三乘，說心量趣無所有。是故，大慧！彼不知過去未來現在諸如來自心現境界，計著外心現境界，生死輪常轉。
Then Mahāmati Bodhisattva-Mahāsattva said to the Buddha: "World-Honored One, the 'eternal' and 'inconceivable' that you speak of — the domain of the self-realized noble path, and the domain of ultimate meaning — World-Honored One, is this not the very same 'eternal, inconceivable' that the outsiders, by their own causes and conditions, speak of as well?"
The Buddha told Mahāmati: "It is not through the causes and conditions the outsiders rely on that one attains the eternal and the inconceivable. Why is this? The outsiders' 'eternal, inconceivable' is not established through their own [genuine] mark. If their 'eternal, inconceivable' is not established through its own mark, then by what cause does their 'eternal, inconceivable' come to be manifest at all?
"Furthermore, Mahāmati, if the inconceivable were established through its own mark, it would then indeed be eternal — but because [what they rely on] is instead the mark of a maker, a cause, [their] 'eternal, inconceivable' fails to be established. Mahāmati, my own 'eternal, inconceivable' is that of ultimate meaning. It is established through the mark that is the cause of ultimate meaning — apart from any [fixed] nature, and apart even from the absence of one — and, precisely because self-realization attains this very mark, it therefore has a mark at all. Because the cause is the wisdom of ultimate meaning, it has a genuine cause, and this precisely because it is apart from [fixed] nature and apart from the absence of one. It is like uncreated space, or nirvāṇa's utter cessation — eternal precisely because [neither is ever made]. In this way, Mahāmati, it is not the same as the outsiders' theory of the eternal and inconceivable. Thus, Mahāmati, this eternal, inconceivable is what every tathāgata attains through self-realized noble wisdom — and it is for this reason that the eternal, inconceivable attained through self-realized noble wisdom should be diligently trained in.
"Furthermore, Mahāmati, the outsiders' 'eternal, inconceivable' in fact has the nature of the impermanent, because it depends on a cause that is itself a differing mark, and not on the power of a mark that is its own true cause — this is why it fails to be genuinely eternal.
"Furthermore, Mahāmati, the outsiders, having observed that whatever is made lacks a fixed nature and is impermanent, thereupon deliberate and conceive of [something else, behind it, as] eternal. Mahāmati, I too, through this very same reasoning — having observed that whatever is made lacks a fixed nature and is impermanent — speak, from the domain of self-realized wisdom, of an eternal that has no [external] cause at all. Mahāmati, if the outsiders establish their 'eternal, inconceivable' through a cause and a mark, while [that very] cause's own mark, whether existent or non-existent, is like a rabbit's horns, then this 'eternal, inconceivable' is nothing but false thought expressed in words. This is precisely the fault every one of the outsiders shares. Why is this? Because it is nothing but false thought expressed in words, like a rabbit's horns — its own cause and mark are simply not there at all. Mahāmati, my own eternal, inconceivable has its mark through self-realization alone, apart from whatever is made, whether it is held to have a fixed nature or not. It is eternal, and not [the eternal that comes from observing] external things lacking a fixed nature and being impermanent, and then deliberating and conceiving of something eternal [behind them]. Mahāmati, if one further deliberates and conceives of an eternal inconceivable in just this way — from external things lacking a fixed nature and being impermanent — such a one does not know the true cause and mark of the genuine eternal, inconceivable at all, and is, in fact, far removed from the domain of self-realized noble wisdom. He ought not to speak of it as he does.
"Furthermore, Mahāmati, the śrāvakas, dreading the suffering born of false thought about birth-and-death, seek nirvāṇa, without knowing that birth-and-death and nirvāṇa are, in their very distinction, both alike without any fixed nature — nothing but false thought. Having brought their future sense-faculties and object-realms to rest, they form the notion of nirvāṇa — but this is not the turning of the storehouse consciousness toward the domain of self-realized noble wisdom at all. It is for this reason that the foolish and the ignorant speak of there being three vehicles, and speak of the measure of mind as reaching a place that has nothing at all. It is for this reason, Mahāmati, that they fail to know the self-manifesting domain of every tathāgata, past, future, and present, and, clinging instead to an object-realm manifested as though it were external to mind, remain forever turning upon the wheel of birth-and-death.
The commentators locate the entire dispute in a single question: what actually grounds the claim of permanence? "外道所計常不思議，乃言『世間所作之法有已還無，悉是無常』...妄計神我以為常不思議" — "what the outsiders posit as 'eternal, inconceivable' amounts to this: having observed that whatever is made in the world exists and then returns to non-existence, and is therefore entirely impermanent... they falsely posit a divine self as the 'eternal, inconceivable' [standing behind that impermanence]." The Buddha's own argument, on the commentators' reading, is not that permanence itself is a mistake — the Buddha, too, observes that made things are impermanent — but that the outsiders' move from "made things are impermanent" to "therefore something unmade and eternal exists" smuggles in exactly the kind of cause it should be trying to avoid: "彼因自相性，但有言說而無實義，故云『同於兔角』" — "the cause and mark they rely on has nothing but words behind it, no real substance at all — hence it is said to be 'like a rabbit's horns.'" A divine self posited this way is exactly as unreal as the paradigm case of nonexistence from Part 6's earlier debate.
The commentators summarize the Buddha's positive alternative in four points, worth holding together rather than reading singly: "初斥思量計常、二名不知常不思議自因之相、三斥去佛所得相遠、四彼不應說者斥其但有言說也" — "first, [the outsiders'] fault is deliberating and then conceiving of an eternal; second, they do not know the true cause and mark of the genuine eternal, inconceivable; third, they are, as a result, far removed from what a buddha actually attains; fourth, 'they ought not to speak of it' means precisely that what they say has nothing behind it but words." What the Buddha calls eternal is never inferred from impermanent things at all — it is realized directly, through self-realization, and it is exactly this difference in method, not any difference in vocabulary, that keeps the Buddha's "eternal, inconceivable" from collapsing into the outsiders' own. The śrāvaka's mistake that closes this section, on the commentators' reading, is a milder version of the very same error: mistaking sense-faculties merely quieted for nirvāṇa genuinely attained, rather than seeing that birth-and-death and nirvāṇa share, at bottom, the identical absence of any fixed nature.
All Dharmas Are Unborn
「復次，大慧！一切法不生，是過去未來現在諸如來所說。所以者何？謂自心現性非性，離有非有生故。大慧！一切性不生，一切法如兔馬等角，愚癡凡夫不實妄想自性妄想故。大慧！一切法不生，自覺聖智趣境界者，一切性自性相不生，非彼愚夫妄想二境界。自性身財建立趣自性相。大慧！藏識攝、所攝相轉，愚夫墮生住滅二見，悕望一切性生。有非有妄想生，非賢聖也。大慧！於彼應當修學。」
"Furthermore, Mahāmati, that all dharmas are unborn is what every tathāgata, past, future, and present, has taught. Why is this? Because one's own mind's manifestation is [itself] apart from any fixed nature, and this apartness is itself apart from both existence and non-existence giving rise to anything at all. Mahāmati, [when the foolish say] that no [fixed] nature is ever born, [and] that every dharma is like the horns of a rabbit or a horse, this is nothing but the false thought of an ignorant, ordinary person unaware that this very judgment is itself just another false thought about own-nature. Mahāmati, for one within the domain of self-realized noble wisdom, that all dharmas are unborn means that the mark of every [fixed] nature's own-nature is unborn — not the two-sided object-realm of that same ignorant person's false thought [of pure existence against pure non-existence]. It is established as the mark of one's own reach toward own-nature, through the very body and resources of that own-nature. Mahāmati, [when] the mark of the storehouse consciousness's grasping and what is grasped turns, the ignorant fall into the two views of arising and of ceasing, hoping and longing for every [fixed] nature to be born; giving rise to false thought about existence and non-existence is not the way of the wise and the noble. Mahāmati, one should diligently train in this."
The commentators catch that "unborn" is being used in two entirely different senses within this single short passage, and that missing the distinction turns the Buddha's own teaching into exactly the error it is correcting: "不能了生即無生，但言一切性不生，計著一切法如兔馬之無角，此愚夫不覺妄想，是自性之妄想故也，非今所謂不生" — "failing to understand that arising is itself precisely the unborn, [the ignorant] merely assert that no [fixed] nature is ever born, and cling to the notion that every dharma is like the nonexistent horns of a rabbit or a horse — but this is itself just the unwitting false thought of an ignorant person, itself a false thought about own-nature; it is not what 'unborn' means here at all." Simply denying that anything exists is not the teaching; it is one more instance of exactly the false-thought pattern being diagnosed. Genuine unborn-ness, by contrast, does not deny existence but sees straight through it: "若言一切法不生，是佛自覺聖智趣境界者，則一切法性相俱不生，此真無生，非彼愚夫妄想分別有無二境也" — "when it is said that all dharmas are unborn as the domain of a buddha's own self-realized noble wisdom, it means that both the nature and the mark of every dharma alike are unborn — this is genuine non-arising, not that ignorant person's false discrimination between the two sides of existence and non-existence."
The Five Lineages
「復次，大慧！有五無間種性。云何為五？謂：聲聞乘無間種性、緣覺乘無間種性、如來乘無間種性、不定種性、各別種性。云何知聲聞乘無間種性？若聞說得陰、界、入自共相斷知時，舉身毛孔熙怡欣悅及樂修相智，不修緣起發悟之相，是名聲聞乘無間種性。聲聞無間，見第八地，起煩惱斷，習氣煩惱不斷。不度不思議變易死，度分段死。正師子吼：『我生已盡，梵行已立，不受後有。』如實知，修習人無我，乃至得般涅槃覺。大慧！各別無間者，我人眾生壽命長養士夫，彼諸眾生作如是覺求般涅槃。復有異外道說，悉由作者。見一切性已，言：『此是般涅槃。』作如是覺，法無我見非分，彼無解脫。大慧！此諸聲聞乘無間外道種性，不出出覺。
「為轉彼惡見故，應當修學。大慧！緣覺乘無間種性者，若聞說各別緣無間，舉身毛竪悲泣流淚，不相近緣，所有不著。種種自身，種種神通，若離若合，種種變化。聞說是時，其心隨入。若知彼緣覺乘無間種性已，隨順為說緣覺之乘，是名緣覺乘無間種性相。大慧！彼如來乘無間種性，有四種，謂：自性法無間種性、離自相法無間種性、得自覺聖無間種性、外剎殊勝無間種性。大慧！若聞此四事一一說時，及說自心現身財建立不思議境界時，心不驚怖者；是名如來乘無間種性相。大慧！不定種性者，謂：說彼三種時，隨說而入，隨彼而成。大慧！此是初治地者，謂種性建立，為超入無所有地故，作是建立。彼自覺藏者，自煩惱習淨，見法無我，得三昧樂住聲聞，當得如來最勝之身。」
"Furthermore, Mahāmati, there are five kinds of fixed spiritual lineage. What are the five? The fixed lineage of the śrāvaka vehicle, the fixed lineage of the pratyekabuddha vehicle, the fixed lineage of the Tathāgata's vehicle, the lineage that is not fixed, and the lineage set apart on its own. How does one recognize the fixed lineage of the śrāvaka vehicle? If, upon hearing it taught that the own mark, the shared mark, [and both together] of the aggregates, elements, and sense-fields are to be cut off and known, [a person's] every pore of his body thrills with joy and delight, and he takes pleasure in cultivating [only] the wisdom of their general marks, without cultivating the mark of the insight that arises from [contemplating] dependent origination, this is called the fixed lineage of the śrāvaka vehicle. Through this fixed [attainment], a śrāvaka sees as far as the eighth ground; the arising afflictions are cut off, but the afflictions of habituated force are not. He does not pass beyond the inconceivable death of transformation and change, but does pass beyond death by discrete increments. He truly roars the lion's roar: 'My births are ended; the pure life is established; I will not receive another existence.' Knowing this in accordance with reality, and cultivating the no-self of persons, he thereby attains the awareness of ultimate nirvāṇa. Mahāmati, as for the lineage set apart on its own: [beings under it, believing in] a self, a person, a sentient being, a life-span, one who is nourished and grows, an agent — such beings form just this kind of awareness, and seek their own ultimate nirvāṇa on that basis. There are, further, heterodox outsiders who teach that everything comes about through some [personal] agent; having observed the totality of [conditioned] existence, they declare, 'this itself is ultimate nirvāṇa.' Forming this kind of awareness, the view of the no-self of dharmas is simply not within their reach, and they have no true liberation at all. Mahāmati, this lineage — belonging to the śrāvaka vehicle's outsider-adjacent fixed [destiny] — never actually leaves what it believes it has left.
"It is in order to turn such beings from this evil view that one should diligently train in this teaching. Mahāmati, as for the fixed lineage of the pratyekabuddha vehicle: if, upon hearing dependent origination taught as a fixed teaching all its own, [a person's] every hair on his body stands on end, and he weeps and sheds tears, [wishing] to draw near nothing else at all and to be attached to nothing whatsoever, [and delights in hearing of] every kind of self-transformation, every kind of supernormal power, being separated and being joined, and every kind of miraculous change — and, upon hearing such things taught, his mind readily enters into them — then, once one recognizes that this is the fixed lineage of the pratyekabuddha vehicle, one should teach him, in accordance with his own inclination, the pratyekabuddha vehicle itself: this is called the mark of the fixed lineage of the pratyekabuddha vehicle. Mahāmati, the fixed lineage of the Tathāgata's own vehicle is of four kinds: the fixed lineage of the dharma of own-nature, the fixed lineage of the dharma apart from any mark of self, the fixed lineage of attaining self-realized noble wisdom, and the fixed lineage of the supreme excellence of external buddha-lands. Mahāmati, if, upon hearing each of these four matters taught one by one, and upon hearing the inconceivable domain established through one's own mind's manifestation of body and resources being taught, a person's mind is not startled or afraid, this is called the mark of the fixed lineage of the Tathāgata's own vehicle. Mahāmati, as for the lineage that is not fixed: when the [above] three kinds are taught, such a person enters into whichever is being taught, and is accomplished according to whichever it is. Mahāmati, this refers to one only newly cultivating the ground: the establishing of spiritual lineages [in this way] is done precisely so as to carry such a person past into the ground that has nothing at all. As for that same person's own storehouse of self-realization: once his own habituated force of affliction is purified, and he sees the no-self of dharmas, he attains the bliss of samādhi and dwells for a time as a śrāvaka — and will, in time, attain the Tathāgata's own most excellent body."
The commentators are precise about what "fixed" (無間) actually names in this fivefold scheme: "此經所以明夫種性有五言無間者，謂其種性純一無間雜也" — "the reason this sūtra, in explaining that spiritual lineage is fivefold, calls each 'fixed' is that each lineage is pure and singular, admitting no mixture with any other." It is not a claim that beings are permanently sorted at birth in some deterministic sense; it names, rather, an observed uniformity of response — a person's own instinctive reaction, on first hearing each vehicle's teaching described, reveals which lineage is already operative in him. This is why the text tests each lineage by bodily reaction rather than doctrine held: the śrāvaka lineage responds to hearing the aggregates analyzed away with unmixed joy; the pratyekabuddha lineage responds to dependent origination and its miraculous fruits with weeping and hair standing on end; the Tathāgata's own lineage responds to the inconceivable domain of mind's own manifestation without any fear at all — three distinct, involuntary signatures, not three doctrines chosen.
On the fifth category, "the lineage set apart on its own" (各別種性), the commentators are unusually blunt that this is not a fifth genuine spiritual path at all but a sub-case worth separating out precisely because it is so easily mistaken for the first: "此言著相聲聞，不異外道而言無間，於我、人知見等各各差別之法計為涅槃，而不知此是生死根本，反以為覺而取證也" — "this refers to a śrāvaka clinging to marks, no different from an outsider despite being called 'fixed': he takes the manifold, differentiated views of self, person, and the rest as nirvāṇa itself, not knowing this is precisely the root of birth-and-death, and mistakenly treats it as awakening, seeking to verify it as such." The commentators' closing gloss on the unfixed lineage's own eventual outcome is worth holding onto for later pages: even this most provisional of destinies is not a dead end, since the text's own promise is that such a person "will, in time, attain the Tathāgata's own most excellent body" — a claim that becomes directly relevant when the sūtra turns, on the next page, to whether the icchantika, seemingly fixed in the opposite direction, can ever be said to attain the same.
Part 8 Complete
This closes Part 8: why the Buddha's own "eternal, inconceivable" differs from the outsiders' identical vocabulary in method rather than in name, the teaching that all dharmas are unborn read correctly rather than as one more denial of existence, and the five kinds of fixed spiritual lineage tested by a being's own involuntary response to each vehicle's teaching. Part 9 turns to the icchantika by name — the being seemingly without any fixed lineage at all — and asks whether such a being is permanently barred from liberation, before turning to the three own-natures and the two kinds of no-self that anchor the rest of this fascicle's teaching.
Continue to Part 9 — The Icchantika, and the Three Own-Natures →