Tibetan Buddhist canon
Mahasiddhas were practitioners of yoga and tantra, or "tantrika"s. Their historical influence throughout the Indian subcontinent and the Himalayas was vast and they reached mythic proportions as codified in their songs of realization and hagiographies, or namtars, many of which have been preserved in the Tibetan Buddhist canon. The Mahasiddhas are the founders of Vajrayana traditions and lineages such as Dzogchen and Mahamudra.