ABSTRACT
Ritual in the Buddhist Tantras somehow always revolves about the “three mysteries of the Buddha”—his Body, Speech, and Mind, and how the tantric performer correlates his own body, speech, and mind with those “mysteries” or secrets. That will be my first concern. Then I shall turn to various topics of the Anuttarayoga Tantra, a note on mundane occult attainments (siddhi), the “five ambrosias” of the Stage of Generation, finally the three ritual observances (vrata) and other matters of the Stage of Completion. The “three mysteries of the Buddha” are the life of all these discussions.
