This is human civilization, gṛhastha. That also allowed only for few years. Not few years. Formerly, as we have calculated that people used to live for hundred years, so twenty-four years, twenty-five years, brahmacārī; twenty-five years, gṛhastha; twenty-five years, vānaprastha; and last twenty-five years, sannyāsa. Ultimately sannyāsī, training. So in these four āśramas, brahmacārī, gṛhastha, vānaprastha and sannyāsa, in three āśramas there is no sex life: brahmacārī, vānaprastha and sannyāsa. Only gṛhastha allowed sex life. That is also restricted only for begetting children. So in the Vedic civilization sex life is actually denied. Only in gṛhastha life, with the restriction. Not that whenever I like. No. That is bondage. So long we'll be attached to sex life, then we'll have to accept this material body. Yan maithunādi-gṛhamedhi-sukhaṁ hi tucchaṁ kaṇḍūyanena karayor iva duḥkha-duḥkham (SB 7.9.45). We should remember this. But what will be the effect unless we are trained up? People are not educated what is the value of life, how life should be conducted, what is the aim of life. But everything can be done. It is no difficulty. Just like a man practicing to lift . . . I think everyone, you know, if he takes on his back one small calf, it grows; when the calf becomes a very big bull one can lift. This is practice. But all of a sudden, if you want to lift one big bull on your shoulder, that is not possible. But if you practice to take the little calf from the very beginning, it grows and your strength grows. It grows . . . This is gradual process. So the human form of life, the whole training is . . . That is Vedic civilization, how to avoid sex life. That is liberation. If I have got desire for sex life some way or other, then I will have to take birth again in this material world to satisfy.
So the training should be how to give up this idea. And it is possible. If training is there, then it is possible. That is the instruction of Prahlāda Mahārāja: kaumāra ācaret prājño dharmān bhāgavatān iha (SB 7.6.1). From the very beginning, children should be trained up in this line. That is the responsibility actually, father, mother's affection. But the father, mother do not know what is the aim of life. Neither they are trained up how they can train up their children. But here is the prescription how to train up. So in this age, although it is very difficult task, at least if we teach our children to chant Hare Kṛṣṇa mahā-mantra, then everything is possible. That is the facility of this age. He'll be gradually trained up to the highest perfection. Caitanya Mahāprabhu's benediction is there: ihā haite sarva siddhi haibe tomara (Caitanya-bhāgavata Madhya 23.78). Simply by chanting Hare Kṛṣṇa mantra, you'll get all perfection of life. So either . . . Narottama dāsa Ṭhākura sings, gṛhe vā vanete thāke, 'hā gaurāṅga' bole dāke. So don't be afraid that "Because we are in this age we cannot be trained up; it is very difficult." But we can very easily chant Hare Kṛṣṇa mahā-mantra. That is a special concession of this age. Just like these children were dancing and chanting. And it is the duty of the parents to train the children in such a way they get liberty in this very life. Father, mother, they should think of their innocent children, that "This boy, this child, has come to us. Now let us train him in such a way that he will get liberty, no more birth and death." This is real responsibility of father and mother. Pitā na sa syāj jananī na sa syāt, guru . . . (SB 5.5.18). Everyone's duty should be how to give relief the living entities from these clutches of birth and death. That is ideal civilization.