The best-known work of Nyingma literature, the oldest of the four major schools of Tibetan Buddhism, the "Bardo Thodol", or "The Tibetan Book of the Dead" is the work of Tibetan Buddhist spiritualism first revealed by Karma Lingpa in the 14th century. "The Tibetan Book of the Dead" is part of a larger corpus of texts called the "Profound Dharma of Self-Liberation through the Intention of the Peaceful and Wrathful Ones" which is believed to have...