Thinley Norbu Rinpoche (1931-2011) was an important modern teacher in the Nyingma lineage of Tibetan Buddhism. He was the eldest son of Dudjom Rinpoche, the former head of the Nyingma school, and also the father of Dzongsar Jamyang Khyentse Rinpoche and Dungse Garab Rinpoche. Thinley Norbu Rinpoche was considered to be an emanation of the 14th-century Nyingma master Longchempa. He wrote many books including A Cascading Waterfall of Nectar , White Sail, and The Small Golden Key .