Katok Tsewang Norbu
Katok Rigdzin Tsewang Norbu was a teacher of the Nyingma school of Tibetan Buddhism who notably championed the shentong or "empty of other" view first popularised by the Jonang school. He also examined the Chan Buddhist teachings of Hashang Mahayana, known as Moheyan. Despite the shentong view being banned as heretical, he successfully taught and cultivated its teachings as a legitimate view of the Nyingma school.
Sonam Deutsen offered to enthrone Rigdzin Tsewang Norbu, when he was 24 years of age, as the Rinpoche of Katok Monastery, but he declined and said he preferred his life as a "vagabond". His seat remained at the Katok Monastery of Tibet.
Scholarly impact
Katok Tsewang Norbu's interests spanned many of the important Nyingma and Kagyu teachings of Tibetan Buddhism, and Bon, including several not associated with the Nyingma schools:His interest in Chan followed its "defeat" as a teaching in Tibet at the famous 8th century Samye Monastery debate, after which there was even a Cham dance ridiculing Chan, Hashang Mahayana. His interest may have been spurred, according to van Schaik, by Gelug criticism of Nyingma teachings such as Dzogchen as well as against other "simultaneist" teachings of the Sarma schools.