The Indian Buddhist masters who first brought their tantric tradition to Tibet treated this text as fundamental to the view and practice of both Maha Yoga and Ati Yoga (or Dzogchen), the non-dual dharma.
Presented here, alongside a new translation of the root tantra that seeks to convey its poetic brilliance as a classical masterpiece of world literature, are three original commentaries: two by Indian masters, Vimalamitra and Garab Dorje, and one by the renowned 11th century Tibetan master Rongzom Mahapandita.
Together they provide a complete view of the importance of this text within the Nyingma tradition, and for the Vajrayana Buddhist teachings in general.
The book includes a lovely foreword by Venerable Khenpo Sonam Topgyal Rinpoche.