Cruz, California Vajrayāna Buddhism ( Devanagari : वज्रयान; Oriya : ବଜ୍ରଯାନ, Tibetan : རྡོ་རྗེ་ཐེག་པ་, rdo rje theg pa; Mongolian : Очирт хөлгөн, Ochirt Hölgön , Chinese : 密宗, mì zōng ) is also known as Tantric Buddhism, Tantrayāna, Mantrayāna, Secret Mantra, Esoteric Buddhism and the Diamond Vehicle. Vajrayogini: Her Visualizations, Rituals,