Chuánshù yīxīn jiè wén 傳述一心戒文
Transmitted Account of the One-Mind Precept Documents by 光定 (撰)
About the work
A three-fascicle autobiographical-doctrinal memoir by Kōjō 光定 (779–858), Saichō’s eldest direct disciple and the principal supervisor of the Enryaku-ji Precept Platform (戒壇院) following the establishment of the Mahāyāna kaidan in 822. The work is the canonical Saichō-school memorial document, narrating Saichō’s life, the institutional struggle for the Mahāyāna ordination platform, and the doctrinal foundation of the “One-Mind Precepts” (yīxīn jiè 一心戒) — Saichō’s term for the Mahāyāna bodhisattva Brahmajāla precepts as they were institutionally established on Mt. Hiei.
Abstract
Authorship. The header is explicit: “Tendai-school disciple, Enryaku-ji Precept-Platform Cloister Affairs-Officer, Transmission-of-the-Lamp Dharma-Master rank, Kōjō 光定, compiled.” Kōjō (779–858) was Saichō’s eldest direct disciple — older than Gishin and Ennin — and the trusted institutional implementer of the precept platform that had been Saichō’s life-work.
Date. No internal date. The work refers to Saichō’s death (822) in the past tense and shows the institutional precept platform fully operational. Composition is conventionally placed in the Tenchō era (824–834) or slightly later; modern scholarship occasionally pushes the date to as late as 845. The bracket notBefore = 823, notAfter = 858 (Kōjō’s death) is conservative.
The work opens with one of the most affecting Saichō-encomia in the early Heian corpus: “I have heard that within the dark blue sea there is the lí-lóng (black dragon) jewel; in the three-teaching colored heavens, none have seen its substance; among the various schools’ excellent worthies, none have known its color. My Great Master obtained it. The Great Master’s name was Saichō, Great Meditation-Master, a person of Japan, born in Ōmi Province. The Great Master took the essence-spirit as his bones, took yin-and-yang as his vessel. His nature was Heaven-given; his wisdom was self-naturing. He embraced the meaning of the one-vehicle, he bore the precepts of the one-vehicle. Like the eloquence of bhikṣu Joyful-Root, like the wide-learning of bhikṣu Ānanda. He gathered the three trainings into the river of his mind; he stored the one-vehicle in the ocean of his speech. Riding the cup, he wandered to the Western Sea [Tang]; staff in hand he climbed Mt. Tiantai. He saluted the image of Zhì-yǐ Dàshī and received the one-mind precepts.”
Kōjō then narrates the institutional struggle for the Mahāyāna kaidan — Saichō’s submissions to Emperor Saga, the opposition of the Nara Sōgō, the eventual imperial ratification of the kaidan one week after Saichō’s death in 822. The narrative reaches its emotional climax at Saichō’s deathbed: “At the time of his death, the Great Master, his face lit with sorrow, said, ‘The Mind-Dharma is about to be completed; the great teaching can now be implemented. The one-true Dharma — all may be there.’ He commanded me, took my hand, and spoke of his heart. The transmitting-of-the-lamp affair, the implementation of the principle beyond all things — was in this.”
The full three fascicles unfold across twenty-articles of doctrinal-historical material: (1) the historical narrative of Saichō’s life and the Tendai-school establishment; (2) the doctrinal foundations of the yīxīn jiè (One-Mind Precepts); (3) the canonical authorities for the Mahāyāna kaidan; (4) the Sōgō opposition and Saichō’s response; (5) the imperial ratification; (6) the regulatory structure of the kaidan (precept-platform); (7) the curriculum and disciplinary system; (8–20) various canonical and institutional questions. Throughout, Kōjō names and praises Saichō’s principal disciples — Gishin (義眞), Enchō 圓澄 (founder of the Sammon-Mudō-ji line), Kōjō himself, Ennin (圓仁), and the twelve-year mountain-confinement students of the first generation.
The work is the canonical insider-historical witness of the foundational generation of Japanese Tendai and a major source for the Saichō biography. Almost everything we know about the day-to-day operations of Saichō’s school comes ultimately through Kōjō’s account here.
Translations and research
- Paul Groner, Saichō: The Establishment of the Japanese Tendai School (rev. Honolulu: University of Hawaiʻi Press, 2000), draws extensively on this text for the Saichō biography.
- Tamura Kōyū 田村晃祐, Saichō 最澄 (Yoshikawa Kōbunkan, 1988).
- Hazama Jikō 硲慈弘, Nihon bukkyō no tenkai to sono kichō (Sanseidō, 1948).
Other points of interest
Kōjō’s vivid evocation of Saichō at Mt. Tiantai — “Staff in hand he climbed Mt. Tiantai; he saluted the image of Zhìyǐ Dàshī and received the one-mind precepts” — established the devotional iconography of Saichō’s lineage-transmission that has remained central to Tendai self-understanding for over a millennium. The Hiei-zan tradition holds that Saichō received the One-Mind Precepts directly from Zhìyǐ’s spirit at his stūpa, not from any living teacher — a transmission-vision that Kōjō’s narrative establishes and that subsequent Tendai literature has elaborated.