Obtaining Tibetan Buddhist Texts

Four Classes of Tantra (rgyud sde bzhi)

• The four successive vehicles of the tantras, namely: Kriyātantra, Ubhayatantra, Yogatantra, and Unsurpassed Yogatantra (Anuttarayogatantra), the last of which, from the rNying-ma point of view includes the vehicles of Mahāyoga, Anuyoga and Atiyoga. See under tantra. GD (from the Glossary to Tibetan Elemental Divination Paintings)