अग्नि , the revered fire deity, manifests in three forms: in the sky, among humans, and in waters [rv-10-45-1 ] rv • Book 10 . Known as the bringer of light and purifier, अग्नि connects the cosmic and earthly realms, granting prosperity and protection [rv-10-45-5 ] rv • Book 10 . He is praised for his power in rituals, granting wealth, happiness, and overcoming foes [rv-10-45-9 ] rv • Book 10 .