A scholarly though readable annotated translation of a classic work on the science of the spirit from eighth century Tibet, as orally bestowed by Padmasambhava, the Guru Rinpoche.

The teachings here given apply to all levels of practitioners, as they range from basic practical advice to the most subtle insights of Buddhist metaphysics.

A CD-ROM containing a corrected version of the Tibetan text, both in original script and in transliteration, is included in the present volume.