Sùyào yíguǐ 宿曜儀軌
Ritual Manual on the Lunar Mansions and Planetary Bodies by 一行 (Yīxíng, 撰)
About the work
A one-fascicle Esoteric ritual-manual (yí-guǐ 儀軌, Skt. kalpa / vidhi) on offerings to the nakṣatra and planetary deities, attributed to the great Tang Esoteric monk-astronomer Yīxíng (一行, 683–727). The text is the liturgical companion to the astrological-doctrinal KR6j0530 Xiù-yào-jīng: where T1299 explains which nakṣatra-deity governs which day, T1304 supplies the mudrās, mantras, and image-meditation sequences for actually invoking and worshipping them. It belongs to the same Tang Esoteric astrological cycle as T1299, T1305 (KR6j0536), T1306 (KR6j0537), and T1309–T1311.
Abstract
The text is a short, technically-dense ritual manual organised around invocation of the Xū-kōng-zàng (Ākāśagarbha 虛空藏) family of nakṣatra-deities, with Mañjuśrī 文殊師利 as the principal bodhisattva of stars. Each ritual unit consists of three components: the mudrā (yìn 印), iconographically described; the mantra (zhēn-yán 真言), in transliterated Sanskrit; and the fruit/result (xī-zāi 息災 = śāntika, “calamity-pacification”; 增益 = pauṣṭika, “augmentation”; 延命 = “life-extension”; etc.).
The principal mudrā/mantra units in the text comprise the Ākāśagarbha mudrā (with the dictum “If a person seeks merit and wisdom, he should take refuge in this Bodhisattva. The sun, moon, and stars are all transformations of Ākāśagarbha”), the Mañjuśrī mudrā (for averting the seven calamities 七種災難 — eclipses, deviations of the planets, war, drought, untimely wind and rain, malevolent ministers, and wild beasts — a list directly drawn from the Mahāvairocana-tantra), the Samantabhadra mudrā, the Life-Extension mudrā (yán-mìng yìn 延命印), and dedicated mudrās for each of the Seven Planets (七曜) and the Twenty-Eight Mansions (二十八宿).
The attribution to 一行 is canonical and consistent with his role — uniquely among Tang Esoteric figures — as both astronomer-calendrist (author of the Dàyǎnlì 大衍曆) and dual-mandala Tantric initiate under 善無畏 and 金剛智. Jeffrey Kotyk (2018) and earlier Osabe Kazuo 長部和雄 have however shown that several texts attributed to Yīxíng in the astrological cycle (notably T1309 KR6j0540 and T1310 KR6j0541) are likely Pseudo-Yīxíng late-Tang or Five Dynasties fabrications. T1304 is less suspect than T1309/T1310 — its Esoteric ritual idiom is consistent with Yīxíng’s documented mid-Tang style and with the Dàrìjīng shū — but a definitive attribution awaits philological work. The dating bracket here follows Yīxíng’s Chángān Esoteric activity (717–727).
The text is not a translated sūtra (as the yíguǐ genre title indicates) but a Chinese-composed ritual digest, drawing on Indian astrological iconography filtered through the Esoteric kalpa genre.
Translations and research
- Osabe Kazuo 長部和雄. Tōdai mikkyō shi zakkō 唐代密教史雜考. Kobe shoka daigaku gakujutsu kenkyūkai, 1971 — fundamental study of the corpus of texts attributed to Yīxíng, with skeptical assessment of attributions.
- Kotyk, Jeffrey. “Yixing and Pseudo-Yixing: A Misunderstood Astronomer-Monk.” Journal of Chinese Buddhist Studies 31 (2018): 1–37.
- Yano Michio. Mikkyō senseijutsu 密教占星術. Rev. ed., Tōyō shoin, 2013.
- Chen Jinhua. Yixing’s Astronomical Works and Their Buddhist Context. Études thématiques. EFEO, 2016 (forthcoming / circulated typescript).
- Sørensen, Henrik H. “On Esoteric Buddhism in China: A Working Definition,” and “The Spell of the Great, Golden Peacock Queen.” In Esoteric Buddhism and the Tantras in East Asia, ed. Charles D. Orzech et al. Leiden: Brill, 2011 — survey of the Tang Esoteric ritual-manual genre.