If our mind is fixed up in Kṛṣṇa, then naturally the senses will be controlled. If we fix up our mind that we shall not do anything, dṛḍha-vratāḥ. . . Bhajante māṁ dṛḍha-vratāḥ (BG 7.28). This is determination, that "I shall have nothing to do without Kṛṣṇa." Then you are first-class yogī—dvija, brāhmaṇa, everything. Everything. So this is. . . these are the qualification of not dvija. . . Dvija is primary qualification of becoming a brāhmaṇa. Saṁskārād bhaved dvijaḥ. By saṁskāra, by the reformatory process, one is initiated—that is called dvija, dvitīya-janma. The spiritual master is the father, and the Vedic knowledge is the mother. This is called dvija, dvitīya-janma, second birth. So after being dvija, when the spiritual master sees that he is acquired sadācāra. . . Sadācāra means these four things: no illicit sex, no intoxication, no meat-eating, no gambling; taking bath thrice, rising early in the. . . These are called sadācāra. These are brahminical qualification.
So this Ajāmila was very nicely trained up, born of a brāhmaṇa father, and his father trained up. But unfortunately, when he was young man, he was passing through the road, he saw one śūdra is embracing another śūdrāṇī, or prostitute. Now it is very common affair all over the world, a man is embracing, kissing. But this was not allowed in gentlemen's society. The śūdras, the fourth-class men, they used to do that. Sometimes, not always. So he was young man. Naturally, when he saw that a young śūdra is embracing another young girl, śūdrāṇī, and she is not properly dressed, she became attracted. . . he became attracted. And they were drunk. So in this way, he fell a victim of that prostitute. He liked that prostitute, and later on, he remained with her, and he had very good wife, very respectable family, brāhmaṇa, but he forgot everything. Therefore it is said, naṣṭa-sadācāraḥ: "He lost all brahminical qualification." So he was so much trained up, and still, by seeing the sex behavior of a śūdra and śūdrāṇī, he fell down long, long years ago. Now these things are very common affair. How the young men can be saved? It is very difficult. Therefore Śrī Caitanya Mahāprabhu has given one panacea: "Chant Hare Kṛṣṇa." That can save you. Otherwise it is very difficult.