YV 4.6c

If it is done by day, the night enters the waters; therefore the waters appear dusky by day; if it is done by night, the day enters the waters; therefore the waters appear shining by night; he takes (them) at the union of shade and light; verily for him he secures the colour of day and night. 'These waters are rich in oblation', he says; verily he takes them made into an oblation. 'Rich in oblation be [4] the sun', be says; verily he takes them with light in them. He takes with an Anustubh; the Anustubh is speech; verily with the whole of speech he takes them. He takes with a verse of four feet, he places them thrice, they make up seven, the Çakvari has seven feet, the Çakvari is cattle; verily he wins cattle. For this world the Garhapatya is established, for yonder the Ahavaniya; if he were to place (them) on the Garhapatya, he would have cattle in this world, if on the Ahavaniya, in yonder [5] world he would have cattle. He places (them) on both; verily he makes him have cattle in both worlds. He carries (them) round everywhere, to smite away the Raksases. 'Ye are the share of Indra and Agni', he says; that is according to the text. He places (them) on the Agnidh's altar; the Agnidh's altar is the invincible part of the sacrifice; verily he places (them) on the invincible part of the sacrifice. Wherever in the performance of a sacrifice nothing is done, in that (place) the Raksases infest the sacrifice. In that he takes of the Vahantis, that part of the sacrifices lies being performed, to prevent the infestation of the Raksases, for they do not move them, but they lie around until the third pressing, for the continuity of the sacrifice. The theologians say, 'He indeed would be an Adhvaryu who in making Soma descend should make it descend for all the gods.' 'To the heart thee!' he says; verily he makes it for men; 'To mind thee!' he says; verily he makes it for the Pitrs; 'To the sky thee! To the sun thee!