The Creator created the angels and the rejecters; thereafter the sacrifice was created, after the sacrifice the metres; they went away in all directions, the sacrifice went after the rejecters, the metres after the sacrifice; the angels reflected, "These have become what we are"; they had recourse to the Creator; the Creator said, "Taking the strength of the metres I shall bestow it upon you." He took the strength of the metres and bestowed it upon them. Then the metres ran away, and the sacrifice followed the metres. Then the angels prospered, the rejecters were defeated. One who knows the strength of the metres — "Do thou proclaim," "Be it proclaimed," "Utter," "We that utter," the Vasat call — prospers himself, his foe is defeated. The theologians say, "For whose gain does the Adhvaryu cause him to proclaim?" "For the strength of the metres," he should reply; "Do thou proclaim," "Be it proclaimed," "Utter," "We that utter," the Vasat call, that is the strength of the metres; one who knows thus sings whatever he sings with the metres in full strength. "In that the Mighty One slew Vritra, there is impurity, in that he destroyed the Yatis, there is impurity; then why is the sacrifice the Mighty One's up to the completion?" they say. The sacrifice is the sacrificial body of the Mighty One, and it is this they sacrifice. To him who knows thus the sacrifice resorts.