Those who are in the higher position of the society, they are obliged to observe ten kinds of purificatory processes, out of which, the first purificatory process is garbhādhāna-saṁskāra. So the parents, when they take to sex life for begetting nice children, there is garbhādhāna-saṁskāra, and if one does not observe this garbhādhāna-saṁskāra, he immediately falls down to the group of śūdra from brahminical position. These are the injunction in the Vedic literature. Sex life is not denied, but one must take responsibility for sex life; otherwise, he becomes entangled in so many sinful activities.
Because here in the material world, everyone is a criminal. Just like in the prison house, when a criminal is there, in every state there is law. He cannot violate the laws of the prison house. Similarly, here also, in this material world, who have come here to enjoy . . . there is no enjoyment, there is simply suffering. But we take sufferings as enjoyment. That is called illusion. Anyway, the Vedic principle has allowed everything. Because here we have come to enjoy so-called sense gratification. That is illusion. So there is regulated principle.
You can have sex life once in a month. That is prescribed. Because the woman has once in a month menstrual period. So sex life is meant for simply begetting nice children, not for sense gratification. Therefore, because the woman is . . . gets the menstrual period once in a month, therefore the man can have sex life just after the menstrual period over, after five days, he can sex life, have sex life with his wife under garbhādhāna-saṁskāra, responsibility. Otherwise he becomes implicated in sinful activities. That is Vedic injunction.
So sex life is not denied. Just like in our Society, the boys and girls, they come to our Society, and as far as possible, we get them married. We don't allow to live, the boys and girls and friends, like friends. No. That is a great sinful activity. So nothing is denied. The problem of life is eating, sleeping, mating and defending. So everything is there, but in a regulated form. In regulated form so that the world may not become hell. If it is irregulated form, then the whole world will be hell.
It is stated in the Bhagavad-gītā, narakāya, varṇa-saṅkaraḥ (BG 1.40). When we produce unwanted children, the whole world becomes just like hell. It is going to happen like that at the present moment. The sex life is not denied. The point is discussed because it was raised. Sex life is not denied, but in a regulated form so that you can get nice population, you can live very happily. Not that you produce unwanted children and they turn out rogues, thieves and drunkards, like that. That is not allowed. You must produce nice children. For that purpose, sex life is allowed.
And especially in this age, at the present moment, if you can produce children to become Kṛṣṇa conscious, that will be a great service to the Lord. Because we want now Kṛṣṇa conscious population. Otherwise this world is going to hell. That's a fact. We are dwindling, liquidation.