Rigdzin Sokdrup
Rigdzin Sokdrup (rig 'dzin srog sgrub) - A cycle of teachings revealed by Lhatsün Namkha Jikmé after a pure vision he had while meditating in the Lhari Rinchen Nyingpuk cave to the north of Drakkar Tashiding in Sikkim. The cycle includes the famous practice of Riwo Sangchö.