This book contains three separate, and very important, works detailing Tibetan Tantric Buddhist thought and practice: Seven Initiation Rituals of the Tibetan Tantra, The Six Yogas of Naropa, and The Vow of Mahamudra. These were translated and edited by Muses assisted by exiled Tibetan monks from manuscripts in the Library of Congress. There are some very strange passages here. There is the mysterious prophecy of Mi-Gyur-Dorje found in one of the manuscripts among the initiation rituals, which tells of a far future time when Tibet will be shattered and perscuted by demons. Naropa relates the Yoga of Entering Another's Body (which can be used to reanimate a corpse!). Naropa also discusses at some length what we call lucid Muses wasdreaming, but which he calls The Practice of the Illusory Body.