What it teaches
The Awakening of Faith in the Mahāyāna — Chinese Dàshèng Qǐxìn Lùn (大乘起信論), Discourse on Awakening Mahāyāna Faith — is a short doctrinal treatise of roughly thirty pages in modern English translation, organised in five chapters and a closing verse summary. The text is conventionally attributed to the second-century Indian poet Aśvaghoṣa and traditionally said to have been translated into Chinese by the Indian monk Paramārtha in 553 and re-translated by Śikṣānanda around 700, but the broad modern consensus is that the surviving text is a sixth-century Chinese composition by an anonymous author working inside the Yogācāra inheritance — there is no surviving Sanskrit original, and the doctrinal vocabulary points unambiguously to a Chinese rather than Indian compositional context. The treatise's doctrinal centre is the One Mind (yī xīn, eka-citta) — the claim that the same mind under one aspect is suchness (tathatā, the Mind as Suchness) and under another aspect is the arising and ceasing of phenomena (the Mind as Birth-and-Death), and that the two aspects are not two minds. The first aspect anchors the *tathāgatagarbha* doctrine: the awakened nature is already the structure of every moment of consciousness rather than an outcome of practice. The second aspect carries the analysis of how awareness, under conditions of avidyā, generates the apparently substantial world of saṃsāric experience through the eight-consciousness scaffolding Yogācāra had previously articulated. The synthesis is the text's distinctive move: the older sūtra literature had taught both the tathāgatagarbha and the *ālayavijñāna* doctrines separately, and the Awakening of Faith is the first treatise to integrate them under a single architecture in which the storehouse consciousness is recognised as the Buddha-nature misperceived.
The East Asian transmission
The text's downstream weight is disproportionate to its length. Chinese Chan inherited the One Mind doctrine through the Awakening of Faith and built the school's sudden awakening curriculum around the claim the treatise had compressed — that the recognition the practice points to is already the nature of the mind doing the looking, not a state to be produced. The Platform Sūtra of Huineng and the later Chan literature carry the text's analytical vocabulary into the eighth century and beyond, and the Awakening of Faith remained the canonical doctrinal handbook of the school throughout the Tang period. The same transmission ran into Korean Sŏn through the seventh- and eighth-century Korean masters who studied in Tang China, and into Japanese Zen through the Tendai institution on Mount Hiei — Hiei's curriculum included the Awakening of Faith as a standard doctrinal text, and the medieval Japanese founders Dōgen, Hōnen, Eisai, and Nichiren all received it during their Hiei training before founding the schools their names anchor. The treatise was also the principal carrier of the tathāgatagarbha reading into the Pure Land traditions of East Asia, where the original Buddha-nature doctrine the text articulates underwrote the school's claim that the practitioner's recitation of the nembutsu is not a petition to an external Buddha but a recognition of the Amida that has been present all along. The Yoshito Hakeda 1967 English translation — The Awakening of Faith Attributed to Aśvaghoṣa — remains the standard English-language critical edition and is the version the index carries.
Where to encounter it in the index
The Hakeda translation is the index's direct carrier of the text itself. The doctrinal frame the treatise sits inside is most thoroughly mapped in Junjirō Takakusu's *The Essentials of Buddhist Philosophy* — the principal twentieth-century survey of the East Asian doctrinal schools — which devotes substantial chapters to Yogācāra (under its Japanese name Hossō), to Tiantai and Tendai, to the Chan inheritance, and to the doctrinal use the Awakening of Faith received across all of them. The contemporary lived register of the text's doctrine runs through the Vietnamese Thiền lineage that descends from the same East Asian Mahāyāna inheritance: Thich Nhat Hanh on emptiness, signlessness and aimlessness is the most direct exposition, translating the One Mind analysis into TNH's interbeing idiom without the sixth-century technical apparatus; his teaching on how true Buddhist instruction takes us directly to ultimate truth is the same content compressed; the Plum Village reflection by Br. Troi Duc Niem carries the recognition off the practice rather than off the text. Pema Chödrön's *When Things Fall Apart* and her course on awakening compassion operate inside the Tibetan inheritance that did not directly receive the Awakening of Faith but inherits a structurally parallel tathāgatagarbha analysis through the Yogācāra and Ratnagotra-vibhāga lineages — the bodhicitta-as-actual-structure orientation Chödrön extends is the same recognition the Awakening of Faith's One Mind names, in a different vocabulary. The text itself sits closest in the index to the *Laṅkāvatāra Sūtra* — the older Indian scripture whose cittamātra analysis the Awakening of Faith compressed and rearticulated — and to the entries on Vasubandhu and Asaṅga, the Yogācāra founders whose technical framework the treatise inherits, and on Zhiyi, whose Tiantai synthesis the Awakening of Faith both presupposes in its doctrinal background and shaped through its later reception.
What it isn't
The Awakening of Faith is not, despite the traditional attribution, a translation of an Indian original. The modern consensus that the surviving text is a sixth-century Chinese composition reflects philological, doctrinal and stylistic analysis converging from independent directions; the Aśvaghoṣa attribution carries the authority the East Asian tradition needed for a foundational treatise, but is hagiographical rather than historical. The text is also not a sūtra in the strict sense — it is a śāstra, a doctrinal treatise — and the way it functions in the East Asian schools is closer to a creedal handbook than to a scriptural narrative. Finally, the One Mind doctrine is not a return to the ātman the anātman analysis ruled out: the Mind as Suchness the text names is empty in the Madhyamaka sense, lacking intrinsic nature, and the treatise's machinery is organised to prevent the reification the language is most likely to invite.
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