YV 5.2p

He should repeat all the metres for one who makes many sacrifices, for all the metres are won by him who makes many sacrifices. He should repeat indefinitely to win that which is not definite. The thread is worn around the neck for men, over the right shoulder for the Pitrs, over the left for the gods. He puts it over the left shoulder; verily he makes the mark of the gods. He repeats standing, for standing he speaks more audibly. He repeats standing, to conquer the world of heaven. He sacrifices sitting; verily he finds support in this world. In that he repeats in the Krauñca, note, that is connected with the Asuras, in the low note, that is connected with men, in the intermediate note, that is connected with the gods. One should repeat in the intermediate note, to secure the gods. Clever indeed [1] were the Hotrs of old; there fore the ways were held apart, and the paths did not conflict. One foot should be within the sacrificial altar, the other outside; then he repeats, to hold the ways apart and to avoid conflict of the paths. Then does he win the past and the future, the measured and the unmeasured does he win, domestic and wild cattle both does he win [2]; verily also the world of the gods and the world of men he conquers. The gods having repeated the Samidhenis could not see the sacrifice. Prajapati in silence performed the sprinkling of the butter. Then indeed did the gods see the sacrifice. In that he silently sprinkles, (it serves) to light up the sacrifice. Verily also he anoints the kindling-sticks. He who knows thus becomes soft. Verily also he delights them. He delights in offspring and cattle [3] who knows thus. If he were to sprinkle with one (verse), he would delight one; if with two, (he would delight) two; if with three, he would make (the offering) go beyond (all others). He sprinkles (repeating the verse) in the mind, for what is imperfect is made perfect by mind. He sprinkles across so as not to make a failure.