iii. 3. 7.

Prajapati created the gods and the Asuras; thereafter the sacrifice was created, after the sacrifice the metres; they went away in all directions, the sacrifice went after the Asuras, the metres after the sacrifice; the gods reflected, 'These have become what we are'; they had recourse to Prajapati; Prajapati said, 'Taking the strength of the metres I shall bestow it upon you.' He took the strength of the metres [1] and bestowed it upon them. Then the metres ran away, and the sacrifice followed the metres. Then the gods prospered, the Asuras were defeated. He 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 [2]; he who knows thus sings what ever he sings with the metres in full strength. 'In that Indra, slew Vrtra, there is impurity, in that he destroyed the Yatis, there is impurity; then why is the sacrifice Indra's up to the completion?' they say. The sacrifice is the sacrificial body of Indra, and it is this they sacrifice. To him who knows thus the sacrifice resorts.