Tantra was a religious movement in India around the fifth to seventh centuries, and its practices are part of Buddhism and Hinduism. The word tantra also refers to texts which transmit tantric practices. In Buddhism, tantra is also called Vajrayana, “The Vajra Vehicle.” Tantric ritual and art are characterized by deity yoga, mandalas, mantras, abhisheka (initiation), wrathful deities, and ritual sexual union. In Hinduism, tantrism was often associated with the worship of Shiva and various goddesses (shakti). A practitioner of tantra is called a “tantrika.” Tantra is also a genre of texts that have been variously categorized. Most common is the division of tantras into four categories: Kriya Tantra, Charya Tantra, Yoga Tantra, and Highest Yoga Tantra.