The Buddhist monk who spread Buddhism in Tibet was

Padmasambhava also known as Guru Rimpoche the Indian Buddhist monk spread the Buddhism in Tibet. He even helped in the construction of first Buddhist monastery in Tibet. In Tibetan Buddhism, he is a character of a genre of literature called terma, an emanation of Amitābha that is said to appear to tertöns in visionary encounters and a focus of guru yoga practice, particularly in the Rimé schools.