These instructions given by Lord Kṛṣṇa while talking with His friend the learned brāhmaṇa are very good for the guidance of human society. A system of human civilization that does not promote varṇa and āśrama is nothing but a polished animal society. Indulgence in sex life by a man or woman living single is never acceptable in human society. A man should strictly follow the principles of brahmacārī life or, with the permission of the spiritual master, should get married. Single life with illicit sex is animal life, for the animals have no such institution as marriage.
Modern society does not aim at fulfilling the mission of human life, which is to go back home, back to Godhead. To fulfill this mission, the system of varṇa and āśrama must be followed. When the system is followed rigidly and consciously, it fulfills this mission, but when followed indirectly, without the guidance of superior authority, it simply creates a disturbing condition in human society, and there is no peace and prosperity.
Kṛṣṇa continued to talk with His brāhmaṇa friend: “My dear friend, I think you remember our activities during the days when we were living as students. You may remember that once we went to collect fuel from the forest on the order of the guru’s wife. While collecting the dried wood, we entered the dense forest and by chance became lost. There was an unexpected dust storm and then clouds and lightning in the sky and the explosive sound of thunder. Then sunset came, and we were lost in the dark jungle. After this, there was severe rainfall; the whole ground was overflooded with water, and we could not trace out the way to return to our guru’s āśrama. You may remember that heavy rainfall—it was not actually rainfall but a sort of devastation. On account of the dust storm and the heavy rain, we began to feel greatly pained, and in whichever direction we turned we were bewildered. In that distressed condition, we took each other’s hand and tried to find our way out. We passed the whole night in that way, and early in the morning, when our absence became known to our gurudeva, he sent his other disciples to search us out. He also came with them, and when they reached us in the jungle they found us very much distressed.