This important work appears here in full with a commentary by the illustrious Pabongka Rinpoche (1878-1914), generally regarded as the foremost Tibetan Buddhist teacher of the last century. Both texts have been translated by Khen Rinpoche, Geshe Lobsang Tharchin-one of the last great masters of old Tibet, and a former abbot of Sera Mey Tibetan Monastery, one of the largest Buddhist monasteries in the world.