Tapasya means restraining your senses. That is. That is human life. That is human civilization. The more you restrain your senses from its activities, the more you're advanced, civilized, advanced human life. Tapasya. Tapasya means, tapa, tapa, from tap, tapa comes. Tapa means temperature.
So if I restrain my senses, because we are, from time immemorial, we have been practiced to indulge our senses for gratification, and in the human form of life, because we have to control the senses, it sometimes gives us some pains. I am accustomed to do something, but my spiritual master said... Just like in this country I say that you cannot take meat, you cannot smoke. So all my students, they were accustomed to this habit, but by my order they have restrained. In the beginning there is plot of land and a cow—your whole economic question is solved. Why you should work so hard day and night? So we have created a civilization simply working hard day and night, and the purpose is sense gratification. That's all. That is prohibited. Make your life simplified. Save your time for Kṛṣṇa consciousness. That is the program. Don't be implicated with sinful activities. Simple life. Just like your father says, "My dear boy, you take your food just in time, and you do this work, and I'll be satisfied." If you do that, then father is satisfied. But if you take from the pocket of your father or from the cash box without his permission, then you are criminal.
So by God's arrangement, everything is there. Everything. Pūrṇam idam. Pūrṇam idaṁ pūrṇam adaḥ pūrṇam idaṁ pūrṇāt pūrṇam udacyate (Īśopaniṣad, Invocation). Everything is complete in this world. There is no scarcity. We have simply created scarcity by our mismanagement. But if we take up the laws as they are prescribed in the scriptures and live peacefully, there is no scarcity. My Guru Mahārāja used to say that in this world there is no scarcity by the arrangement of God. But the only scarcity is this Kṛṣṇa consciousness. People are not Kṛṣṇa conscious. They're materially conscious. They're sensually conscious. That has to be changed. So Ṛṣabhadeva says that to satisfy our senses, that is also available in the life of a hog.