Biri is the Sun as venerated by the Oraon. The visible sun is held to be the symbol, and by some accounts the very representation, of the supreme god Dharmes, whose older indigenous name Biri-Belas, 'the Sun-Lord', is built upon it; in this the Oraon sun-cult stands close to the supreme-being cult itself. As a distinct object of invocation the Sun is paired with the Moon in the set formula 'Chando Biri' recited in the worship at the sacred grove, where the two luminaries are reckoned among the representative divine powers of Dharmes and appealed to as givers of light and witnesses of human dealings.