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仁王經開題

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Text ID
KR6c0218
Date
806–835
Dynasty
日本

Rénwáng jīng kāití 仁王經開題

Opening Exposition of the Sūtra of the Humane King by 空海 Kūkai (撰)

About the work

A one-juan early-Heian Japanese Esoteric kaidai 開題 on the Sūtra of the Humane King (Rénwáng jīng 仁王經), the principal prajñā sūtra of the East Asian state-protection (hùguó 護國) Buddhist tradition. Composed by 空海 Kūkai (774–835). The parent text addressed is the 不空 Bùkōng (Amoghavajra) translation Rénwáng hùguó bānruò bōluómìduō jīng 仁王護國般若波羅蜜多經 (KR6c0203, T8n0246) — the Tang Esoteric re-translation of 765–766 CE that Kūkai had brought back from his Tang study with 惠果 Huìguǒ. Preserved in Taishō Vol. 56, No. 2200. The surviving Taishō text derives from a manuscript signed Bunmei era jiǎchén year = 1484 CE by the 22-year-old copyist 長算良忍房 Chōsan Ryōnin-bō, but the work itself is securely Kūkai’s.

Abstract

The text follows the three-gate structure standard for Kūkai’s kaidai-genre commentaries: (1) xù jīngqǐ yì 叙經起意 (“recounting the intent behind the sūtra’s arising”), (2) shì jīng tímù 釋經題目 (“expounding the sūtra title”), and (3) jiě jīng běnwén 解經本文 (“interpreting the body of the sūtra”). Within each gate, Kūkai assembles the standard apparatus of Mādhyamika-Yogācāra doctrinal exposition layered with the Esoteric framing.

Section 1 (intent). Kūkai opens with the Heart-Sūtra-style fǎshēn nán yì (“the Dharma-body is hard to discuss”). The historical Buddha is positioned within the sānshí jiàopàn 三時教判 (three-phase doctrinal scheme): first the Four-Noble-Truth turning for śrāvakas, second the Prajñā discourses for bodhisattvas, third the Middle-Way One-Vehicle discourses. The Renwang sūtra is positioned as belonging to the second phase by doctrinal classification but opening into the third phase in its principle — “this sūtra, according to the doctrinal classification, belongs to the second turn; according to the principle, it pervades the third turn.” This is the standard Sanlun-school positioning of the Rénwáng-jīng, which Kūkai accepts. The Rénwáng doctrinal contribution is identified as the integration of quánshèng (provisional-vehicle) and shíshèng (real-vehicle) teachings via the doctrines of inner-protection (nèihù 內護) and outer-protection (wàihù 外護). Inner protection works through the three-fold Prajñāpāramitā and reaches the fourteen-tolerances 十四忍 of the bodhisattva-stages; outer protection works through the thirteen-contemplations 十三觀 and produces the state-protection (hùguó 護國) effects — dispersal of the seven calamities, attraction of the seven blessings, the gathering of the five-power-bodhisattvas and hundred-divisions of demonic guardians.

Section 2 (title-exegesis). The full title Fóshuō Rénwáng hùguó bānruò bōluómì jīng, xùpǐn dìyī 佛說仁王護國般若波羅蜜經序品第一 is parsed unit by unit: fóshuō (the agent-of-the-request is the Dharma-king), rénwáng (the agent-of-the-petition is the state-king: rén = people, mutual affection between high and low; wáng = master, what the multitudes revere), hù (added defense), guó (city-domain), bānruò (wisdom), bōluómì (crossing to the further shore), jīng (thread, gathering), xù (cause-and-condition), pǐn (category-division), dìyī (first in sequence).

Importantly, Kūkai surveys the four Chinese translations of the sūtra: (a) Jìn-dynasty 竺法護 Zhú Fǎhù (Dharmarakṣa, in one juan) — the earliest, but the language “still has a barrier”; (b) Yáo-Qín 鳩摩羅什 Kumārajīva (in two juan) — widely transmitted; (c) Liáng-dynasty 真諦 Paramārtha (in one juan) — “obscure and not in circulation”; (d) Táng-dynasty 不空 Bùkōng (in two juan). The Rénwáng kaidai takes the Bùkōng (T246) version as its principal — confirmed by the title-headline (Rénwáng hùguó, distinctive of Bùkōng’s recension) and the cf. note in the Taishō entry. Bùkōng’s version is, of course, the Esoteric re-translation of the Tang Imperial Esoteric establishment, which Kūkai had received as authoritative through his Huìguǒ transmission.

Section 3 (body-interpretation). Kūkai segments the sūtra into the classical three parts: opening (jiàoqǐ yīnyuán fēn — the first chapter), middle (six chapters of holy-teaching exposition), and concluding (yījiào fèngxíng fēn — the final chapter). The first chapter is then itself parsed under a three-gate analysis: xù láiyì 叙來意 (introducing the chapter’s intent), shì pǐnmíng 釋品名 (glossing the chapter title), and jiě běnwén 解本文 (line-by-line gloss). The surviving text breaks off mid-third-section, after handling the title-section of Hùguó chapter 5 — suggesting that the original kaidai either was unfinished or only the opening section survives in transmission.

Dating is anchored to Kūkai’s post-806 productive period in Japan and the upper bound of his death in 835. The Bunmei-era manuscript date (1484, jiǎchén year) attests the transmission state of the witness, not the date of composition. Within Kūkai’s 806–835 productive period the Rénwáng kaidai is not more precisely datable from internal evidence.

Translations and research

  • Charles D. Orzech, Politics and Transcendent Wisdom: The Scripture for Humane Kings in the Creation of Chinese Buddhism (Penn State, 1998) — the principal English study of the Rénwáng-jīng and its East-Asian commentarial tradition; treats the Kūkai kaidai in the broader Heian state-protection context.
  • Ryūichi Abé, The Weaving of Mantra (Columbia, 1999) — Kūkai’s exegetical method.
  • Hakeda Yoshito, Kūkai: Major Works (Columbia, 1972) — general context.
  • Japanese-language commentarial literature on the Rénwáng-jīng state-protection tradition; Mount Kōya / Shingon scholastic literature on Kūkai’s kaidai corpus.

Other points of interest

The Rénwáng-jīng is — together with the Vimalakīrti-nirdeśa, the Sūtra of Golden Light, and the Lotus — one of the central state-protection scriptures of East Asian Buddhism, and the principal one of the Esoteric tradition. The recitation and lecture of the Rénwáng-jīng was a core Heian-period imperial-court Buddhist ritual; Kūkai’s kaidai is the principal Shingon-school doctrinal anchor for these state-protection performances. The integration in the kaidai of the inner-protection / outer-protection double doctrine — the Esoteric reading by which apparent “state-protection” is integrated with bodhisattva-stage soteriology — is the doctrinal-historical hinge through which the Japanese Shingon establishment claimed to be the principal locus of state-protection efficacy in the Heian polity.

The Bunmei-era (1484) manuscript copy is a significant late-medieval witness to the Kūkai textual tradition, signed by a young 22-year-old copyist Chōsan Ryōnin-bō. Such late copies are a reminder that the medieval Japanese Buddhist textual transmission was active down through Muromachi time, with the Kūkai corpus continuously re-copied for school-internal study.

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