3.10 Pura, in the days of yore, in the beginning of creation; srstva, having created; prajah, the beings, the people of the three castes; saha-yajnah, together with the sacrifices; Prajapati, the creator of beings, uvaca, said; 'Anena, by this sacrifice; prasavisyadhvam, you multiply.' Prasava means origination, growth. 'You accomplish that. Esah astu, let this sacrifice be; vah, your; ista-kama-dhuk, yielder of coveted objects of desire.' That which yields (dhuk) coveted (ista) objects of desire (kama), particular results, is istakama-dhuk.
How?