The Nath tradition is a heterodox siddha tradition containing many sub-sects. It was founded by Matsyendranath and further developed by Gorakshanath. These two individuals are also revered in Tibetan Buddhism as Mahasiddhas (great adepts) and are credited with great powers and perfected spiritual attainment. Gorakhpur, Uttar Pradesh, India, is the centre of Nath sampradaya.