The whole world is working so hard. They are going to the office; they are going to the . . . working hours to earn livelihood. But what is the pleasure? The pleasure is sex. That's all. Their ultimate goal is sex. Yan maithunādi-gṛhamedhi-sukhaṁ hi tuccham (SB 7.9.45). So one should consider, "The sex indulgence is given to the hogs and dogs, and for the same enjoyment I'll have to work so hard?" This is knowledge. "For same enjoyment?" I have got this human form of life for understanding Kṛṣṇa, for understanding God, my position, what I am. I am not this body. I am spirit soul. I have been put into this body, and because I have been put into this body—the body is material—it must finish. It must be finished. Anything, it has got six changes. Anything material, it has got birth, it has got growth, it has got after-effect, then dwindles, and then finished—everything, anything you take, the material. This is called ṣaḍ-vikāra, six kinds of changes. So I am eternal. Na hanyate hanyamāne śarīre (BG 2.20). I do not die after this body is finished, and again I will have to . . . Tathā dehāntara-prāptiḥ (BG 2.13). So this is knowledge. One has to always think of this. That is called tapasya.
So a little . . . Kaṇḍūyanena karayor iva duḥkha-duḥkham (SB 7.9.45). This is śāstra, that "What is this sex life?" It is said, kaṇḍūyanena karayor iva duḥkha-duḥkham. Yan maithunādi-gṛhamedhi-sukhaṁ hi tuccham (SB 7.9.45). Gṛhamedhi. Gṛhamedhi means one who does not know what is the aim of life. Gṛhamedhi and gṛhastha. Gṛhastha means although he is living with wife and children, but he knows what is the aim of life. That is the gṛhastha āśrama. As the sannyāsī knows what is the aim of life, similarly, a gṛhastha also may know. So such gṛhastha, sex life is allowed, who knows the aim of life. And one who does not know the aim of life, simply enjoys sex, he is called gṛhamedhi. These two words are there. In Sanskrit literature every word has got particular meaning, particular thought. Therefore it is called saṁskṛta, most performed and purified literature, saṁskṛta. Saṁskṛta means purified, saṁskāra, just like we offer saṁskāra at the time of initiation, purification.
So our main problem is the sex life. That is . . . Because sex life is the basic principle of material life. Either you are human being or you are demigod or you are a bird, you are a beast, you are a fly, you are a fish, you are tree, plants—everything—the basic principle of material life is sex. Puṁsaḥ striyā mithunī-bhāvam etat tayor mitho hṛdaya-granthim āhuḥ (SB 5.5.8). Everything is there. You have to . . . You have got books. You study and follow the practice. Be little sober. Then you will . . . It is not that you'll not be able. You'll be able. And Kṛṣṇa will help. As soon as you are very eager, then Kṛṣṇa will help: teṣāṁ satata-yuktānāṁ bhajatāṁ prīti-pūrvakam (BG 10.10).