Alchi Monastery topographic conditions, only two survived, one of them the esteemed scholar and translator Rinchen Zangpo who established Buddhist activity in the Ladakh region and other areas of India including Himachal Pradesh and Sikkim. During his sojourn there, he also went to the neighbouring countries of Nepal, Bhutan and Tibet. Zangpo became known by the epithet "Lohtsawa" or the "Great Translator"; he is credited with building 108 monasteries in the trans-Himalayan region in his quest to disseminate Buddhism. He institutionalized Buddhism in the region; these monasteries are considered the mainstay of Vajrayana of Tibetan Buddhism (also known as Lamaism). Zangpo engaged
Yana (Buddhism) of the Nyingma school, Dudjom Rinpoche emphasizes the eight lower vehicles are intellectually fabricated and contrived: Another schema associated with Mahāyāna and Vajrayāna sources: Yana (Buddhism) Yāna (Sanskrit and Pāli: "vehicle") refers to a mode or method of spiritual practice in Buddhism, and in particular to divisions of various schools of Buddhism according to their type of practice. In form, yāna is a neuter noun derived from the Sanskrit root yā- meaning to "go to" or "move" or "reach". The suffix employed to form this noun may have different values: while primarily yāna is understood to refer to the means