The fire altars afterwards developed to fire temples.
At one of the altars in this crypt occurred the miracle of Bolsena in 1263.
The Brahman or superintending priest; the Hotri or reciter of hymns and verses; the Udgatri or chanter; and the Adhvaryu or offerer, who looks after the details of the ceremonial, including the preparation of the offering-ground, the construction of fireplaces and altars, the making of oblations and muttering of the prescribed formulae.
Other cubes of rock, apparently altars, exist in the neighbourhood.
Two altars, to the Sun and the Moon, stood before the former, and cult statues along the latter.