Gyalwa Changchub - one of 25 disciples of Padmasambhava
One of the eight mastering Scholars of Tibet. Gyalwa Changchub received the Mantra teachings of Padmasambhava and became an exemplary monk and Lotsawa. Before departing from Tibet , Padamsambhava met all discipless in Thaduk. There guru spent 21 days giving them last instructions over the practice of the Sadhana, ritual , Mantra, Visualizationen, Meditationen over Samadhi and many other transmissions and doctrines. At this time At this time Padmasambhava dragged Gyalwa Changchub into comprehensive Mandala. He passed into the empty sphere of truth.