The Bija A, representing Vairocana (Dainichi)

In Japanese Buddhist art, characters representing syllables of the Indian Sanskrit language occasionally symbolized Buddhist deities. Sanskrit syllables, whether written, painted, or spoken, derived their power from their historical association with India, the homeland of the Historical Buddha and the site of his original teachings. In this image, the syllable "a" is enthroned on a lotus, a Buddhist symbol of purity, and surrounded by a circle representing light. This syllable was the symbol for the Cosmic Buddha (Japanese, Dainichi Nyorai) from whom all other Buddhas and bodhisattvas emanate. The lotus surmounts a second red lotus held aloft by a vajra, an ancient Indian weapon representing the power to destroy defilement. In esoteric Buddhism, the three-pronged vajra shown here also symbolized the "three secrets" (sanmitsu) -the body, speech, and mind of the Buddha-which could be realized by the devout practitioner through forming symbolic gestures (mudras) with the hands, speaking magical formulas (mantras), and contemplating a Buddhist deity.