vi. 2. 5.

If a weak man take up a burden, he breaks up into pieces. If there were twelve Upasads in the one-day rite, and three in the Ahina, the sacrifice would be upset. There are three Upasads in the one-day rite, twelve in the Ahina, to preserve the strength of the sacrifice; thus it is in order. One teat (of the cow) is used for a child, for that is fortunate. So he takes one teat for his milk drink, then two, then three, then four. That [1] is the razor-edged drink by which he drives away his foes when born and repels them when about to be born; verily also with the smaller he approaches the greater. He takes the four teats first for his drink, then three, then two, then one. That is the drink called 'of a beatific back', full of fervour, and of heavenly character; verily also is he propagated with children and cattle. Gruel is the drink of the Rajanya; gruel is as it were harsh; the Rajanya is as it were harsh [2], it is the symbol of the thunderbolt, (and serves) for success. Curds (is the drink) of the Vaiçya, it is the symbol of the sacrifice of cooked food, (and serves) for prosperity. Milk (is the drink) of the Brahman, the Brahman is brilliance, milk is brilliance; verily by brilliance he endows himself with brilliance and milk. Again by milk foetuses grow; the man who is consecrated is as it were a foetus; in that milk is his drink, verily thus he causes himself to grow. Manu was wont thrice to take drink, the Asuras twice, the gods once [3]. Morning, midday, evening, were the times of Manu's drinking, the symbol of the sacrifice of cooked food, (serving) for prosperity. Morning and evening were those of the Asuras, without a middle, a symbol of hunger; thence were they overcome. Midday and midnight were those of the gods; thence they prospered and went to the world of heaven. Now with regard to his drinking at midday and at midnight, it is in the middle that people feed themselves; verily he places strength in the middle of himself, for the overcoming of his foes. He prospers himself [4], his foe is overcome. Now the man who is consecrated is a foetus, the consecration-shed is the womb (in which he is). If the man who is consecrated were to leave the consecration-shed, it would be as when a foetus falls from the womb. He must not leave, to guard himself. The fire here is a tiger to guard the house. Therefore if the man who is consecrated were to leave (the shed), he would be likely to spring up and slay him. He must not leave, to protect himself. He lies on the right side; that is the abode of the sacrifice; verily he lies in his own abode. He lies turned towards the fire; verily he lies turned towards the gods and the sacrifice.