My Guru Mahārāja used to say that, "I am a sannyāsī. I am not married, neither I am meant for marrying. But if I can produce Kṛṣṇa conscious children, I can marry hundred times." That is the responsibility. Don't produce cats and dogs, produce Kṛṣṇa devotees. Then you marry. Otherwise don't marry. This is Vedic injunction. Marriage is not meant for sense gratification. Marriage is meant for producing nice children, Kṛṣṇa devotees. So that is our aim. Our aim is not to produce cats and dogs. There are so many cats and dogs—the world is not happy. Now there is need of producing nice children, sober, gentle, devotee of Kṛṣṇa, good brain, good character. These things are required.
So they were not unwanted children, these Yadus. This is a make-show only. They came, they are all demigods, they descended just to fulfill the Kṛṣṇa's mission. Kṛṣṇa's mission, Kṛṣṇa came down, so all the confidential servants of Kṛṣṇa, they also appeared to help Him in different . . . so when Kṛṣṇa wanted to go, He wanted to go with the descendants also, who came to help Him. So this is a make-show that the Yadus fought amongst themself. The real purpose is, Kṛṣṇa wanted to take them away. Otherwise, superficially, when one becomes unnecessarily powerful, disturbs the world situation, he's a burden. He's a burden. That kind of burden is vanquished by Kṛṣṇa's desire, will. There must be some catastrophe like war, pestilence, famine, and everything will be finished.
So our duty is, the human form of life, duty is that we should know that we are eternal servant of Kṛṣṇa and, forgetting our relationship, we have come to this material world, and there is struggle for existence, beginning aquatics, jalajā nava . . . there are nine hundred thousand species of aquatics. Who is that physiologist who can know nine hundred thousand species of aquatics? But in the śāstra you will find, exactly. It doesn't say nine hundred one, or eight hundred ninety-nine. No. Nine hundred. Nine hundred thousand species, there are. So because we are in the material contact, and according to our desire, we are having different types of body—aquatics, trees, birds, like that. This is our botheration. Janma-mṛtyu-jarā-vyādhi (BG 13.9), in this way you are . . . this is our problem.
Therefore human civilization means when people are interested to solve the problems. That is human civilization. Otherwise animal, struggle for existence. They . . . there is no human side; that is on the animal side, struggle for existence. The human life is not for struggle. To become sober, not like animals. The animals are engaged whole day and night for searching out food and sense gratification, sex. That is not human civilization. Human civilization is meant for tapasya, tapasya. You should know what is my responsibility. Tapasā brahmacaryeṇa śamena ca damena ca (SB 6.1.13). One should learn how to practice tapasya. Tapasya. This is tapasya, little tapasya. No illicit sex, no gambling, no meat-eating and no intoxication, this is tapasya, little tapasya. Who is dying without meat-eating? We have got so many students. There are so many Vaiṣṇavas, they do not eat meat. Are they dying? This is only bad habit. But if you practice little . . .
In the beginning it may be little troublesome. It is not troublesome. I am thinking . . . just like one gentleman came, "We cannot give up meat-eating. I want, but I cannot." The practice. Abhyāsa-yoga-yuktena cetasā (BG 8.8). Anything you practice, habit is the second nature. So in association of the devotee, if you try to practice this tapasya . . . tapasā brahmacaryeṇa (SB 6.1.13), not to have sex life without any purpose, that is called brahmacārī. Brahmacārī does not mean celibacy. Brahmacārī means who does not use sex life for any other purpose than begetting nice children. He is brahmacārī.
So this is . . . everything should be systematic; otherwise there will be chaos. There will be chaos. Nobody will be happy, and . . . that is described in the Bhagavad-gītā, naraka eva kalpate: the whole world will be hell. That has become now. The whole world has now become hell. So the Kṛṣṇa consciousness movement is very important movement. It is overhauling the whole human, social, political, religious . . . so those who are engaged in Kṛṣṇa consciousness movement, they should be very, very responsible, sober, try to understand the situation and take the shelter of Kṛṣṇa, and everything will come very successful.