He should always celebrate such sacrifices and rites as are completed in a single day. When, however, from performance of the (ordinary) sacrifices of sacrificers, the Sacrifice in Self begins, then for liberation he should sacrifice his own self in the three fires. Without linding fault with his food he should take five or six mouthfuls, offering them duly to the five vital airs uttering Mantras of the Yajurveda.