Prabhupāda: This human life is meant for restraining the senses. Tapaḥ. This is called tapasya, penance. Suppose I am habituated to some type of sense gratification. Now, I take to Kṛṣṇa consciousness. My spiritual master or the scripture says, "Don't do this." So in the beginning, I may feel some inconvenience, but if you can tolerate that, that is tapasya. That is tapasya. Tapasya means I am feeling some inconvenience, bodily, but I am tolerating. That is called tapasya. And this human form of life is meant for that tapasya. Not that because my senses are demanding this satisfaction, I shall immediately offer. No. I shall train myself in such a way that my senses may demand, "My dear sir, give me this facility," I will say, "No. You cannot have." This is called gosvāmī or svāmī. At the present moment, everyone, we are, we have made our svāmī or master the senses, and when you actually become the master of the senses, then you are svāmī or gosvāmī. That is the significance of svāmī and gosvāmī. It is not the dress. One who has controlling power, one who is not dictated by the senses, one who is not servant of the senses. My tongue is dictating, "Please take me to that restaurant and eat sticks." What is that sticks?
Prabhupāda: Steak? What is that spelling?
Prabhupāda: So anyway... Or that fried chicken. Yes. So tongue is dictating me. But if you can control your tongue, "No. I'll give you sweetballs. Don't go there." (laughter) Then you'll become master of the senses. You see? The others are trying that "Don't go there," only. That is impossible. The tongue must have something beautiful. Otherwise it is not possible. That is artificial. If the tongue, you give him something more beautiful than this fried chick or stick or this or that, it will stop. That is the policy. Our policy is that. We can give that, what is called, casein fried with rice. How nice it is. He'll forget meat-eating. So this is the policy, Kṛṣṇa consciousness. All the senses should be supplied something. Not artificially stop it. That is not possible. That is not possible. Others, they are simply trying artificially to stop the function of the senses. No. That is not possible. Our policy is tat-paratvena nirmalam (CC Madhya 19.170). You can purify the activities of the senses, being engaged in Kṛṣṇa consciousness. Then senses will not disturb you. If you want to control the senses, you have to control the tongue first of all. Then you will be able to control other senses very easily. So you give tongue the engagement of chanting Hare Kṛṣṇa, and for tasting Kṛṣṇa prasādam you'll find that your other senses are already controlled. This is the key of controlling our senses, the tongue. And if you give privilege and indulgence to the tongue, you'll never be able to control other senses. This is the secret of controlling senses."
(Srila Prabhupada Lecture, Los Angeles, December 19, 1968)