Vajrayana
Vajrayāna (Sanskrit: वज्रयान), also known as Tantric Buddhism, Tantrayāna, Mantrayāna, Secret Mantra, Esoteric Buddhism, Diamond Way, Thunderbolt Way, or the Indestructible Way, is a complex and multifaceted system of Buddhist thought and practice which has evolved over several centuries.
According to Vajrayāna scriptures, the term Vajrayāna refers to one of three vehicles or routes to enlightenment, the other two being the Śrāvakayāna (also known as the Hīnayāna) and Mahāyāna.
Founded by Indian Mahāsiddhas, Vajrayāna subscribes to Buddhist tantric literature.
History of Vajrayāna in India
Although the first tantric Buddhist texts appeared in India in the 3rd century and continued to appear until the 12th century, scholars such as Hirakawa Akira assert that the Vajrayāna probably came into existence in the 6th or 7th century, while the term Vajrayāna itself first appeared in the 8th century. The Vajrayāna was preceded by the Mantrayāna, and then followed by the Sahajayāna and Kalacakrayāna.