The Hevajra tantra is one of the most important texts of the Highest Yoga Tantras. The Lamdre teachings of the Sakya tradition of Tibetan Buddhism are mostly based on the Hevajra tantra. Hevajra is also the name of the central deity of the tantra, who is usually depicted in union with his consort Nairatmya. The deity is recognizable by the series of skull cups containing various animals held in his hands.