YV 1.6h

If he were to utter speech before the Naksatras appear, he would divide the sacrifice [3]. When the Naksatras have arisen, be utters speech, 'Prepare the fast food.' The consecrated is bound by a vow of sacrifice; verily with regard to the sacrifice does he utter speech. Should he utter speech, he should then repeat a Rc addressed to Visnu. Visnu is the sacrifice; verily he unites the sacrifice with the sacrifice. 'The thought divine we meditate', he says. Thus he makes smooth the sacrifice. 'May it guide us safely according as we will', he says. Verily he wins the dawn [4]. The theologians say, 'Should an offering be made in the house of one who is consecrated, or should an offering not be made?' The man who is consecrated is the oblation, and if he were to sacrifice he would offer a part of the sacrificer; if he were not to sacrifice, then he would omit a joint of the sacrifice. 'The gods, mind born, mind using', he says. The gods, mind born, mind using, are the breaths; verily in them he sacrifices secretly, and the sacrifice is both offered as it were and yet not offered. Now the Raksases are fain to hurt him who is consecrated while he sleeps. Agni [5] indeed is the slayer of the Raksases. 'O Agni, be thou wakeful. Let us be glad', he says; verily having made Agni his guardian, for the smiting away of the Raksases, he sleeps. Now, if a man who is consecrated sleeps, he does something that as it were is contrary to his vow. I Thou, O Agni, art the guardian of vows', he says. Agni indeed is among the gods the guardian of vows; verily he causes him to take up his vow again. 'Among the gods and men', he says for he, being a god [6], is (guardian of vows) among men. 'Thou art to be invoked at our sacrifices', he says; for him they invoke at the sacrifices. Now power and the gods depart from the man who is consecrated when he is asleep. 'All the gods have surrounded me', he says; verily he unites him with both power and the gods.