Lama Sangdü
Lama Sangdü (bla ma gsang 'dus) is a revelation of Guru Chöwang (1212-1270), a speech incarnation of King Trisong Detsen. Lama Sangdü is the main lama practice in the Rinchen Terdzö and the Döjo Bumzang. It is practised by all schools of Tibetan Buddhism, especially on the 10th day of the Tibetan month and the anniversary of the birth of Guru Rinpoche.