This is called tapasya, austerity. Penance. Austerity. Just like we say that on the ekādaśī day you should fast. So fasting is not very, I mean to say, pleasant, but one has to do. This is called tapasya. Brahmacaryeṇa. Brahmacaryeṇa means celibacy. The more you restrain your sex life, the more you become strong for spiritual life. Brahmacaryeṇa. Brahma..., brahmacarya means to restrain, control sex life. Therefore somebody asked me, "Swamiji, why you are stressing so much on married life?" I have given this answer to many gentleman in the television, that because we have got a demand for sex life. But if we are restricted with married life, then there is no, I mean to say, illicit sex life. At least we refrain from that.
So it is stated here. These are the rules. Tapasā brahmacaryeṇa (SB 6.1.13). Brahmacarya means celibacy, and śamena, control the mind. Damena, control the senses. If you can control your mind, then you can control your senses. In the mind is the center of sense activities. If you can control the mind, then easily you can control the senses. And the easiest process of controlling the mind is to fix up your mind in Kṛṣṇa consciousness. If Kṛṣṇa... Kṛṣṇa is all-powerful. If He is seated on your mind, there will be no chance for anything nonsense coming into your mind. Śamena ca damena ca, and tyāgena.