Others offer up the senses, such as the sense of hearing and others, in the fires of restraint; others offer up the objects of sense, such as sound and so forth, into the fires of the senses. Some again offer up all the operations of the senses and the operations of the life-breaths into the fire of devotion by self-restraint, kindled by knowledge. Others perform the sacrifice of wealth, the sacrifice of penance, the sacrifice of concentration of mind, the sacrifice of Vedic study, and of knowledge, and others are ascetics of rigid vows.