So one may be surprised, that "Nobody becomes agitated sitting before mother, sister or daughter." But śāstra says, "No, no. They are agitated." Then you can say, "Maybe agitates some fool rascal." "No." Vidvaṁsam api karṣati: "Even though one is very advanced, learned, they also become agitated." Therefore you should be very, very careful. Very, very careful. And another place is, another . . . Just like in our Society, compulsorily we have to mix with women—not only women, very beautiful young girls. But if one is not agitated even in this association of beautiful women and girls, then he is to be considered paramahaṁsa. He is very advanced. Those who are not . . . Paramahaṁsa means he's above all these material qualities.
So we cannot avoid in our Kṛṣṇa consciousness movement. That was the problem from the very beginning. In India there is restriction between men and women, free intermingling, but in your country there is no such restriction. Therefore I got my disciples married. They criticize me that I have become a marriage-maker. Anyway, I wanted at least to regulate. That is required. Dharmāviruddhaḥ kāmo 'smi (BG 7.11). Kṛṣṇa also says.
Now, a married man also can be brahmacārī. If a married man stick to one wife, and before sex, if he takes permission from his spiritual master, then he is brahmacārī. Not whimsically. When the spiritual master orders him that "Now you can beget a child," then he is brahmacārī. Śrīla Vīrarāghavācārya, he has described in his comment that there are two kinds of brahmacārī. One brahmacārī is naiṣṭhikī-brahmacārī; he doesn't marry. And another brahmacārī is . . . Although he marries, he is fully under control of the spiritual master, even for sex. That is . . . He is also brahmacārī.
So why so much restriction on the sex life? It is . . . The people do not understand throughout the whole world. They are captivated by sex life, especially in the Western countries. Puṁsaṁ striyā mithunī-bhāvam etat (SB 5.5.8). Material existence means a desire of sex life, both man and woman. Puṁsaṁ striyā mithunī-bhāvam etat. Not only in human society, in animal society, in bird society, everywhere, that is material life. Tayor mitho hṛdaya-granthim āhuḥ (SB 5.5.8). And when they are united for this purpose, a man and woman, they . . . We are already attached to the material activities. Then our attachment becomes more and more strong. Tayor mitho hṛdaya-granthim āhuḥ.