Heart Sutra

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The Heart Sutra is the shortest of the Mahayana scriptures known as the Perfection of Wisdom (Prajñāpāramitā) literature, and among the most widely recited texts in all of East Asian Buddhism. Its Sanskrit title, Prajñāpāramitā-hṛdaya, names it the heart — the essence, the distilled core — of a body of writing that elsewhere runs to many thousands of lines. The corpus it condenses is enormous: scriptures named for their length in verses, the eight-thousand-line Aṣṭasāhasrikā, the eighteen-thousand, the twenty-five thousand, the hundred thousand, each working over the same insight at greater and greater elaboration. In a few hundred words the Heart Sutra compresses what those longer texts argue at length, and it is this compression that made it portable enough to be learned by heart, chanted before dawn, and copied with a brush in a single sitting.

A single teaching, staged once

The text stages a single teaching. The bodhisattva of compassion, Avalokiteśvara — rendered in Chinese as Guānzìzài, the one who looks down in sovereign freedom — is described coursing in the deep practice of the perfection of wisdom, and from that depth sees that the five aggregates that make up a person are empty of any fixed, independent self-nature. The five are the standard analysis of what a self is made of: form (rūpa, the body and the material), sensation (vedanā, the felt tone of experience), perception (saṃjñā, the recognizing of objects), mental formations (saṃskāra, the dispositions and volitions), and consciousness (vijñāna). Having seen this, the bodhisattva addresses the disciple Śāriputra — in the older tradition the foremost in analytic wisdom, the master of exactly the kind of doctrinal inventory the sutra is about to take apart.

That Avalokiteśvara should be the one to speak is itself unusual. The Perfection of Wisdom literature ordinarily puts its teaching in the mouth of the Buddha or of Subhūti and Śāriputra; here the bodhisattva of compassion, the figure of devotion across the whole Mahayana world, is made the voice of the deepest wisdom, and the two faces of the path — compassion and insight — are joined in a single speaker. In the longer recension this is staged as a small drama. The sutra opens at the Vulture Peak above Rājagṛha, the Buddha seated among a great assembly of monks and bodhisattvas; he enters a deep concentration, and out of that silence Śāriputra is moved to ask Avalokiteśvara how one who would practice the perfection of wisdom should train. The teaching proper — the same words the short text gives bare — answers that question, and when it is done the Buddha rises from his concentration and confirms it: well said, well said, so it is. The frame does the work of authorization without the Buddha speaking the doctrine himself: it is sanctioned from the center while being uttered from the side. The short recension, the one Xuanzang made standard and the one chanted daily, strips all of this away and keeps only the core, which is why it can be held entire in the memory.

The lines at the center are the most quoted in the literature: form is not different from emptiness, emptiness is not different from form; form is emptiness, emptiness is form. The same is then said of the other four aggregates. Emptiness here — śūnyatā — does not mean nothingness, and the sutra is at pains to forestall that reading. It names the absence of inherent, self-standing existence in anything that arises from conditions. Nothing in the list bears its own being independently; each thing is what it is only in dependence on what it is not, on causes and parts and the mind that frames it. This is the Mahayana reading of the older teaching, carried from the earliest strata of Buddhism, that all things are dependently co-arisen — pushed to the conclusion that dependent arising and emptiness of own-being are two names for one fact. To say a thing arises in dependence is to say it has no nature of its own to begin with.

Running the negation through the catalog

From the formula the text moves into a sustained denial. It runs the negation through the whole inherited catalog of Buddhist doctrine — the aggregates again, the sense-organs and their objects, the elements of cognition, the twelve links of dependent origination from ignorance to old-age-and-death, and even the four noble truths that are the Buddha’s first sermon and the framework of the whole path: no suffering, no origin, no cessation, no path. There is, it says, no knowledge and no attainment, because there is nothing to be attained. The point is not that these teachings are false. It is that none of their terms possesses the fixed, free-standing reality the unawakened mind silently assigns them. The catalog is emptied not to abolish it but to loosen the grip in which it is held. With nothing to obstruct it, the sutra continues, the mind of the bodhisattva is without fear, and far beyond every distorted view, comes to the end of the awakening called nirvāṇa.

The text then closes with a mantra, which it calls the great spell, the spell of great knowledge, the unequalled spell that allays all suffering: gate gate pāragate pārasaṃgate bodhi svāhā — gone, gone, gone beyond, gone altogether beyond, awakening, so be it. The words are carried as the seal of the text rather than as a separate technique: gate, gone; pāragate, gone to the farther shore; pārasaṃgate, completely gone across; bodhi, awakening; and svāhā, the old Vedic exclamation that closes an oblation, the equivalent of an amen spoken over a fire. A scripture that has spent its length unsaying every fixed term ends not on a proposition but on a verb of motion and a word of assent.

The mantra is also where the Heart Sutra touches the world of the dhāraṇī — the condensed, sound-bearing formula that gathers a whole teaching into a phrase to be held and sounded. Several of the manuscript traditions title the work or classify it among the dhāraṇī rather than the sūtras, and the surviving companion to the oldest Sanskrit witness is itself a dhāraṇī text. The closing spell is thus not an ornament appended to a philosophical argument but the argument folded into a form that can be carried in the breath: the perfection of wisdom, which the longer texts unfold across a hundred thousand lines, brought down to five words and a syllable of assent. It is in this register — sound, not analysis — that the sutra crosses most easily into the chanting hall and the copyist’s desk.

The question of where it was made

Scholarship has unsettled the older picture of the sutra’s origin. The traditional account treats it as an Indian text translated into Chinese, the short recension associated with the pilgrim-translator Xuanzang, whose version of 649 — barely two hundred and sixty Chinese characters — became the standard text of East Asia. A contested but influential argument by Jan Nattier holds instead that the short Heart Sutra was likely composed or assembled in China, and that its Sanskrit is a back-translation from the Chinese rather than the other way round. Her case, set out in The Heart Sūtra: A Chinese Apocryphal Text? (Journal of the International Association of Buddhist Studies, 1992), turns on the text’s central passage. The form-and-emptiness section is, word for word, the Chinese of the great translator Kumārajīva’s early-fifth-century rendering of the much longer twenty-five-thousand-line Perfection of Wisdom — but the surviving Sanskrit of that same passage in its parent sutra reads differently. A text genuinely excerpted from a Sanskrit original would match the Sanskrit; instead it matches the Chinese, and its own Sanskrit shows the marks of someone rendering Chinese back into an Indian language, down to unidiomatic word-choices where the expected technical terms are missing. The argument has been pressed and challenged — Fukui Fumimasa among others raised objections, to which Nattier replied — and the dating of the long recension, the role of Xuanzang, and the status of the Hōryūji manuscript remain matters of active dispute among specialists. What is not in dispute is the text’s reach.

Reach

Carried with the larger Prajñāpāramitā corpus across Tibet, China, Korea, Japan, and Vietnam, the Heart Sutra became a fixture of daily liturgy in traditions that otherwise share little. It is chanted in Tibetan monasteries in the deep overtone register of Tibetan Buddhism and the ritual world of Vajrayāna, to the beat of the drum in the Zen halls of Japan, in the esoteric liturgy of Shingon, in the lineages descended from Silla Korea, and in the melodic recitation of Chinese and Vietnamese temples — and it is sounded as a mantra, a current that runs through the Indian mantrayāna and into every Mahayana school that received the corpus. Beyond chant, it is copied by hand as an act of devotion: the East Asian practice of sutra-copying, shakyō in Japanese, takes the Heart Sutra as its most characteristic text, short enough to be set down in one session and held entire in memory. The copying is itself the practice — the brush-stroke counted as merit, the attention counted as the point — so that the scripture has been reproduced by hand not in thousands of copies but in millions, by monks and laypeople who could recite it before they could parse it. It travels, like its near-companion the Diamond Sutra, as both argument and object of devotion at once.

Text and scholarship

The Heart Sutra reaches the modern reader through a thin but textually dense manuscript tradition and a century and a half of editing. The oldest surviving witness is a palm-leaf manuscript long preserved at the Hōryūji monastery near Nara — by tradition dated to the early seventh century, though Georg Bühler’s analysis of its script argued for the eighth — now held in the Tokyo National Museum. It was this leaf that F. Max Müller and the Japanese scholar Bunyiu Nanjio edited in The Ancient Palm-Leaves containing the Prajñā-Pāramitā-Hṛdaya-Sūtra (Oxford, 1884), printing what was then the oldest known Sanskrit text of the sutra. Müller’s English translation of both the short and the long recensions appeared a decade later in Buddhist Mahâyâna Texts, the forty-ninth volume of the Sacred Books of the East (1894), placing the Heart Sutra alongside the Diamond Sutra and the Pure Land scriptures in the first systematic English presentation of the Mahayana corpus.

The standard modern critical edition was the work of Edward Conze, who published the Sanskrit text with sources and bibliography in the Journal of the Royal Asiatic Society in 1948 and revised it in his Thirty Years of Buddhist Studies (1967); his English rendering, including the well-known reading of the mantra as gone, gone, gone beyond, gone altogether beyond, has shaped almost every subsequent translation. Conze’s edition has since been faulted on technical grounds — later philologists have found errors and contested readings in it — but it remains the spine of the scholarly conversation, and it was against Conze’s reconstructed Sanskrit that Nattier set the Chinese parallels that produced the back-translation thesis. The debate that followed her 1992 article is itself a substantial literature, conducted largely in the Buddhist Studies Review and in Japanese scholarship, and it has made the Heart Sutra — the shortest of the sutras — one of the most intensively studied single texts in the field.

The discipline of the negations

For those who recite it the sutra is not a paradox to be solved but a teaching to be realized. The philosophers of the Madhyamaka — the school of the middle, whose founding figure Nāgārjuna gave the analysis of emptiness its rigorous form — read the sutra’s denials as a discipline rather than a metaphysics. Each negation removes a place where the mind can settle and call something its own. The Madhyamaka holds this open with its teaching of the two truths: there is a conventional level at which forms and persons and the path are real and operate exactly as they appear, and an ultimate level at which none of them holds any own-being — and the two are not rival accounts of the world but a single seeing of it. The negations of the sutra denote the ultimate without abolishing the conventional; the bodhisattva who sees that there are no beings to liberate goes on liberating beings. The danger the tradition watches for most closely is the last turn of the screw: that emptiness itself becomes a thing to be grasped, a final ground to stand on, a doctrine to be right about. Nāgārjuna’s verses warn that emptiness wrongly seized is like a snake wrongly grasped, and that those for whom emptiness has itself become a view are called incurable. Against this the Heart Sutra offers no resting place. It empties the aggregates, empties the path, empties attainment, and then declines to set emptiness up as the one term that survives the emptying — for emptiness too arises in dependence on what it negates, and is no more a self-standing reality than form is. The formula that form and emptiness are not two cuts in both directions: the world is not abolished into a void, and the void is not erected into a world behind the world. What is left when the grasping stops is just the aggregates, seen without the silent demand that they be permanent — which is the same thing the text began by saying, that form is emptiness and emptiness is form, exact, and Buddhist, and meant for no end but the release from suffering that the closing word, svāhā, seals over.

→ In the library: Müller (tr.), Buddhist Mahâyâna Texts (1894)

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