Thus ahura-daeva, deva-asura in Zoroastrian and in later Brahman theology are in their meanings diametrically opposed.
Asura-daiva represent originally two distinct races of gods (like the Northern Aser and Vaner) - two different aspects of the conception of deity, comparable to SaLpzov and 6E6s.
Asura indicates the more sublime and awful divine character, for which man entertains the greater reverence and fear: daiva denotes the kind gods of light, the vulgar - more sensuous and anthropomorphic - deities.
In one Asura, whose Aryan original was Varuna, he concentrated the whole of the divine character, and conferred upon it the epithet of "the wise" (mazdao) .
This culminating stage in the asura-conception is the work of Zoroaster.