Grhastha life is a concession for sex life. Otherwise, there is no need of grhastha life. But everything can be used to make the best use of a bad bargain. That is another thing. Actually, to become free from all responsibility and anxieties, if one remains a brahmacari, that is very good. That is the recommendation of sastra. But if you cannot… Because the material world is going on under sex impulse. By nature the sex impulse is there. He will agitate you. But if you can control by becoming a rigid brahmacari, that is better. But it is difficult. Therefore this concession is given. But what is this concession? The concession is sex life. That's all. Yan maithunadi-grhamedhi sukham hi tuccham kanduyanena karayor iva duhkha-duhkham. It is an itching sensation. And after satisfying the itching sensation, there are so many responsibilities and troubles. But trpyanti neha krpanah. Those who are krpanah, does not know how to utilize this life.

Srila Prabhupada — March 30, 1975, Mayapur