अग्नि , the exalted fire deity, is invoked to protect against adversaries [rv-3-24-1 ] rv • Book 3 , receive oblations while being kindled on the altar [rv-3-24-2 ] rv • Book 3 , and to take his place on the sacred grass in ceremonies [rv-3-24-3 ] rv • Book 3 . Devotees seek his favor for support and prosperity, ensuring wealth and progeny for those offering sacrifices [rv-3-24-4 ] rv • Book 3 .