In the Vedas, vajras are the indestructibly hard thunderbolts that Indra hurls at his enemies. Over time, the vajra became the name for a type of ritual weapon, with a handle at the center and a five-pronged point at each end. Vajras are a central image in and symbol of tantric forms of Buddhism, which are often called “Vajrayana” or the “Vajra Vehicle.” Vajrayana ritualists use vajras (representing active compassion or method) often paired with a bell (representing wisdom) in practices of deity yoga. The Tibetan word for a vajra is “dorje,” meaning “Lord among stones.”