Longchenpa

Longchen Rabjam Drimé Özer, or simply Longchenpa was a Tibetan scholar-yogi of the Nyingma school, the 'Old School' of Tibetan Buddhism. According to tibetologist David Germano, Longchenpa's work led to the dominance of the Longchen Nyingthig lineage of Dzogchen, the Great Perfection, over the other Dzogchen traditions. He is also responsible for the scholastic systematization of Dzogchen thought within the context of the wider Tibetan Vajrayana tradition of Buddhist philosophy.