They call that sacrifice dark, which is against the ordinances (of scripture), in which no food is dealt out (to Brahmanas, &c.), which is devoid of Mantras, devoid of Dakshina presents, and which is without faith. Paying reverence to gods, Brahmanas, preceptors, and men of knowledge; purity, straightforwardness, life as Brahmakarin, and harmlessness, (this) is called the penance bodily. The speech which causes no sorrow, which is true, agreeable, and beneficial, and the study of the Vedas, (this) is called the penance vocal.