YV 2.5i

He should support (the fire) with twenty-one (pieces of gravel) for one who desires cattle [2]; there are seven breaths in the head, cattle are the breaths; verily he wins cattle for him by the breaths. With twenty-seven (should he support it) for one who has foes; thus making the threefold bolt he hurls it at his foe, to lay him low. He should support (it) with unnumbered ones, to win what is unnumbered. If he desire of a man, 'May he be without cattle', then without piling the gravel in support, he should separate the sand; verily he pours forth for him the seed on all sides in (a place) not encircled; verily he becomes without cattle [3]. If he desire of a man, 'May he be rich in cattle,' he should separate the sand, after piling the gravel; verily he pours forth for him the seed in one direction in an encircled (place), and he becomes rich in cattle. With (a verse) addressed to Soma he separates (the sand); Soma is impregnator of seed; verily he impregnates seed; with a Gayatri for a Brahman, for the Brahman is connected with the Gayatri, with a Tristubh for a Rajanya, for the Rajanya is connected with the Tristubh. To Çamyu, son of Brhaspati, the sacrifice did not resort; it entered the fire [4]; it departed from the fire in the form of a black antelope, it entered the horse, it became the intermediate hoof of the horse; in that he makes the horse advance, he wins the sacrifice which has entered the horse. 'By Prajapati must the fire be piled', they say; the horse is connected with Prajapati; in that he makes the horse advance, by Prajapati he piles the fire. He puts down a lotus leaf; the lotus leaf is the birthplace of the fire; verily he piles the fire with its own birthplace. 'Thou art the back of the waters', (with these words) he puts (it) down; the lotus leaf is the back of the waters; verily with its form he puts it down. 'The holy power born', (with these words) he puts down the gold disk.