32
The Perfection of Yoga
yogī  doesn't have to worry about snakes. Having acquired a good sitting place in a secluded environment, the  yogī  begins to purify the  ātmā –body, mind and soul. The  yogī  should not think, “Now I will try to achieve some wonderful powers.” Sometimes  yogīs  do attain certain  siddhis  or powers, but these are not the purpose of  yoga , and real  yogīs  do not exhibit them. The real  yogī  thinks, “I am now contaminated by this material atmosphere, so now I must purify myself.”
We can quickly see that contrommg the mind and body is not such an easy thing and that we  cannot  control them as easily as we can go to the store and purchase something. But Kṛṣṇa indicates that these rules can be easily followed when we are in Kṛṣṇa consciousness.
Of course everyone is motivated by sex life, but sex life is not actually discouraged. We have this material body, and as long as we have it, sex desire will be there. Similarly, as long as we have the body, we must eat to maintain it, and we must sleep in order to give it rest. We cannot expect to negate these activities, but the Vedic literatures do give us guidelines for regulation in eating, sleeping, mating, etc. If we at all expect success in the  yoga  system, we cannot allow our unbridled senses to take us down the paths of sense objects; therefore guidelines are set up. Lord Śrī Kṛṣṇa is advising that the mind can be controlled through regulation. If we do not regulate our activities, our mind will be more and more agitated. It is not that activities are to be stopped, but regulated by the mind always engaged