Becoming Vajradhātu.
The later of the two root scriptures of the systematic Tang esoteric tradition — the other being the Mahāvairocana Sūtra. It opens at the most famous night in the whole Buddhist tradition — Siddhārtha's own austerity beneath the bodhi tree — and retells it from the inside: every Tathāgata in existence interrupts him at once, and leads him through five confirmed stages of realization that make him, before he ever rises from that seat, into Vajradhātu. What follows is the birth of the thirty-seven deities of the Vajra Realm Maṇḍala, a hundred and eight names for Vajrapāṇi, and the blindfolded flower-casting rite that still opens Shingon initiation today. Three parts, translated by Amoghavajra, third of the Kaiyuan Three Masters who founded this tradition.
How to read this collection
This is a shorter but extraordinarily dense text — roughly 19,000 Chinese characters across three fascicles, all belonging to a single continuous chapter (金剛界大曼荼羅廣大儀軌品) that the source text itself divides into three parts (之一 / 之二 / 之三) matching its own three juan almost exactly. Unlike the Mahāvairocana Sūtra, no dedicated line-by-line Chinese commentary on this specific text survives; this site checked CBETA and its own source library directly before beginning translation, and found several ritual manuals drawing on the wider Vajraśekhara corpus but no sustained, passage-matched exegesis of this text itself. Following this site's practice on the Hongyi vinaya essays project, reading notes here are Ru-Yi Meditation Center's own original commentary, honestly labeled as such.
Each page carries a continuous run of the base text matched against Ru-Yi's English translation. Where a passage anticipates a later development in the East Asian esoteric tradition — the five-stage process behind Shingon's gosō jōjin-gan, the vajra-name ordination practice, the flower-casting rite still performed today — the reading notes trace that connection out explicitly, while remaining honest about the limits of what a text this compressed can be reconstructed to mean without a living teacher's own demonstration alongside it.
What each page includes
- The Chinese source text beside our English translation, including the sūtra's own mantras — kept in phonetic transliteration and reconstructed Sanskrit per this site's standing dhāraṇī convention.
- Reading notes labeled "Ru-Yi Meditation Center" throughout — original commentary, offered honestly in the absence of a surviving premodern Chinese exegesis matched to this text.
- Cross-references to this site's Mahāvairocana Sūtra collection wherever a figure, technique, or doctrinal claim appears in both texts under a different name.
- An honest note on the limits of this translation's own reconstruction of the sūtra's densest mudrā verses, and on the received text's own incomplete close.
The Sūtra's Own Structure
A single chapter, 金剛界大曼荼羅廣大儀軌品 ("The Chapter on the Vast Ritual of the Vajra Realm Great Maṇḍala"), divided by the source text itself into three parts that align almost exactly with its own three fascicles.
Read by Part
All three parts are translated. Each links to the full bilingual text with Ru-Yi's own original reading notes.
Translation Notes
Recurring terms, kept consistent across all three parts. Where a term already has an established rendering on this site's Mahāvairocana Sūtra collection, we reuse it directly. See the full translation notes for the complete glossary, and also this site's note on translation method.