*SKANDHA IV. CHAP. 1.*
Ruchi and Akuti both mean Wish, Desire. Yajna is sacrifice, Dakshina
means ordinarily the present made to a Brahmana for officiating at a
ceremony. It is also the present made for the performance of a Vedic
sacrifice. No Vedic sacrifice is complete without the present of
Dakshina to the officiating priest. Dakshina was married to Yajna, for
they are inseparable. Possibly Yajna has reference to the elemental or
Devic character of life forms in the first Manvantara. That also
explains why there was no Indra separate from the Avatara of the
Manvantara.
The first Manvantara was one of Pravritti or Descent, Spirit could
descend into matters only with the help of Desire. Desire is the father
of Kama -- Kama is the characteristic of Vedic Yajna. Yajna therefore
guided the First Manvantara. He was the Avatara of Vishnu as well as the
Indra of the Devas.
The sons of Yajna were the Devas of the First Manvantara. The Bhagavata
calls them Sushita or Bliss gods. The Vishnu Purana calls them Yama
Devas. The Manvantara Devas have for their mission the carrying out of
the cyclic work of the Manvantara.