Gorampa Sonam Senge was an important philosopher in the Sakya school of Tibetan Buddhism. He was the author of a vast collection of commentaries on sutra and tantra whose work was influential throughout Tibetan Buddhism. He established one of the definitive Tibetan understandings of the Prasaṅgika model of the Madhyamaka school of philosophy. He was the student of Rongtön. He founded the Thuptén Namgyél Monastery in Tanag, which is just north of Shigatse.
Mādhyamaka thought had a major influence on the subsequent development of the Mahāyāna Buddhist tradition.
It is for instance the dominant interpretation of Buddhist philosophy in Tibetan Buddhism and has also been influential in East Asian Buddhist .
Brahmarupa Mahakala is the outer form of Chaturmukha Mahakala. He is the special protector of the Guhyasamaja Tantra and the 2nd main protector of the Sakya School.
Brahmarupa, a benign form of the wrathful deity Mahakala, is shown as a bearded nomadic ascetic, sitting on a corpse, wearing a bone apron, and holding a thighbone trumpet and a skull cup.
A protector of the Sakya school of Tibetan Buddhism, he is credited with introducing the Hevajra .