After the Buddhism was spread in Tibet, it experienced a remarkably complicated process of receptions and changes.The establishment of Tibetan Asoteric Buddhism got close relations with several Indian and Tibetan buddhists, for instance : Padmasambhava, Rin-chen-bzań-po, Bu-ston, Mar-pa,Tsoń-kha-pa, etc..Their activities played a very important role in the system building of Tibetan Esoteric.
