अग्नि , the divine observer and destroyer of gloom, is celebrated as the radiant guardian of purity and sacrifice. He delights in offerings and is kindled by praises and oblations [rv-10-118-1 ] rv • Book 10 . His radiant presence dispels evil, consuming malevolent forces with his indestructible flame [rv-10-118-7 ] rv • Book 10 . Worshippers anoint him with butter and ghī, invoking his immortal and protective power [rv-10-118-4 ] rv • Book 10 .