Bōrě xīnjīng lüèshū 般若心經略疏
Brief Subcommentary on the Heart of the Perfection of Wisdom Sūtra by 明曠 (述)
About the work
A one-fascicle late-Tang Tiāntái-school commentary on the Heart Sūtra (Xuánzàng’s short-recension version, T251 = KR6c0128), composed by Míngkuàng 明曠 (also written 明嚝), disciple of the ninth Tiāntái patriarch Jīngxī Zhānrán 荊溪湛然 (711–782, sobriquet 妙樂). Preserved in the Wàn xùzàng / Manji zoku-zō as X528. Although the title carries 略疏, the actual title given in the witness is simply 般若心經疏.
The signature reads 「妙樂門人 明嚝 述」 — “Expounded by Míngkuàng, disciple of Miàolè (= Jīngxī Zhānrán)“. One fascicle.
Prefaces
The brief opening preface (「夫以佛法非遙…」) compresses the standard Tiāntái message into eight balanced phrases: “Buddha’s dharma is not distant — within the mind it is near at hand. The True Suchness is not external — having abandoned the body, what should one seek? Delusion and awakening are in oneself; awakening to mind is itself arrival. Brightness and darkness are not other-than. With faith, cultivation, and rapid realisation, one need not search for the medicine king’s drug — but if not, when shall one see the great-sun light? Now for the sake of those whose karmic cause is recitation and contemplation, I briefly annotate as on the right; broad explication would not be exhausted in a kalpa.” This opening establishes the work’s contemplative-pragmatic orientation: it is a study aid for niànsòngguānxíng 念誦觀行 (recitation and contemplation practice), not an exhaustive scholastic exposition.
Abstract
X528 is the principal Tiāntái-school commentary on the Heart Sūtra surviving from the Tang. Doctrinally it integrates the Hṛdaya into the mature Tiāntái synthesis of the yuánróng sāndì 圓融三諦 (interfusing three truths) and the yīxīn sānguān 一心三觀 (one-mind three contemplations). The title gloss is the locus classicus for this Tiāntái application: Mahā is glossed via the Dà zhìdù lùn 大智度論 as having three meanings — dà 大, duō 多, shèng 勝 — which the school’s master (Tiāntái Zhìyǐ 智顗 himself) had identified with the three truths kōng 空 (emptiness), jiǎ 假 (provisional), and zhōng 中 (middle). The Mahā of Mahāprajñāpāramitā therefore embodies the entire Tiāntái doctrinal system in compressed form. Likewise the three modes of prajñā (shíxiàng 實相 — zhōng 中 contemplation; guānzhào 觀照 — kōng 空 contemplation; wénzì 文字 — jiǎ 假 contemplation) and the three knowledges (yīqiè zhì 一切智, dàozhǒng zhì 道種智, yīqiè zhǒng zhì 一切種智) map onto the three contemplations.
The line-by-line commentary is brief and compressed. Each phrase of the Heart Sūtra is glossed in two or three sentences within the Tiāntái doctrinal vocabulary: 「色即是空」 is read as the yuánróng sāndì in compressed form (“form being emptiness” does not mean form’s annihilation as emptiness); 「空即是色」 is read as the same triad, “emptiness being form” not as form’s separation from emptiness; together they manifest the zhōngdì lǐ 中諦理 (middle-truth principle) which is “simultaneously empty, simultaneously provisional, simultaneously middle” (即空即假即中). The eight sufferings (八苦) and four floods (四厄 = kāmaugha, bhavaugha, dṛṣṭyaugha, avidyaugha) are enumerated in standard Tiāntái sequence.
Composition date: no internal dating. Míngkuàng’s career falls in the generation after Zhānrán’s death in 782; the work likely belongs to the late 8th or early 9th century. The bracket notBefore 770 / notAfter 810 reflects this. In the Sòng gāosēng zhuàn his work is mentioned in passing in the entry on Yuánhào 元浩 (T2061, j. 6).
The work was unknown to the printed SòngYuán canons proper and survives only through the Japanese Wàn xùzàng tradition, which preserved it via the Tendai school’s transmission to Mt Hiei and its descendants.
Translations and research
- No substantial Western-language translation located.
- Linda Penkower, T’ien-t’ai during the T’ang Dynasty: Chan-jan and the Sinification of Buddhism (PhD diss., Columbia University, 1993) — fundamental on Zhānrán’s lineage and its late-Tang transmission, including Míngkuàng.
- Brook Ziporyn, Evil and/or/as the Good: Omnicentrism, Intersubjectivity, and Value Paradox in Tiantai Buddhist Thought (Cambridge, MA: Harvard UAC, 2000) — for the doctrinal context of the yuánróng sāndì synthesis.
- Paul L. Swanson, Foundations of T’ien-T’ai Philosophy: The Flowering of the Two Truths Theory in Chinese Buddhism (Berkeley: Asian Humanities Press, 1989).
- Andō Toshio 安藤俊雄, Tendai-gaku — kompon shisō to sono tenkai 天台学—根本思想とその展開 (Kyōto: Heirakuji shoten, 1968) — comprehensive Japanese-language Tiāntái systematic study.
- Modern Chinese-language Tiāntái studies: 釋慧岳《天台教學史》 and related works.
Other points of interest
The yuánróng sāndì application to the Heart Sūtra became standard in subsequent East Asian Tiāntái / Tendai readings of the text and underlies the contemplative use of the sūtra in Tendai kanjin 觀心 practice. Míngkuàng’s text is the foundational Tang document for this tradition.
The work’s preservation through the Japanese Tendai school rather than the Chinese printed canons reflects the disrupted transmission of late-Tang Tiāntái scholarship in China after the Huichāng persecution (845) and the subsequent re-importation of Tiāntái texts from Japan during the Northern Sòng. X528 is one of several Tang Tiāntái commentaries known only through Japanese channels.