The crown worn by Buddhist priests of Vajrayana during the religious performances is known as Mukha (ritual crown). Invariably, the crown bears images of four of the five Dhyani Buddha to establish cosmic principle. The Dhyani Buddhas represented here are Vairochana, Akshyovya, Ratna Sambhaba, and Amitabha. The fifth member Amoghasiddhi is not shown physically but is symbolized by the thunderbolt at the top of the crown.