This Kṛṣṇa consciousness movement is thoroughly wholesale process of cleansing the mind. Therefore Śrī Caitanya Mahāprabhu has given His own version: ceto-darpaṇa-mārjanaṁ bhava-mahā-dāvāgni-nirvāpaṇaṁ śreyaḥ-kairava-candrikā-vitaraṇaṁ vidyā-vadhū-jīvanam (CC Antya 20.12). The purport is—it is a long verse—that by chanting, paraṁ vijayate śrī-kṛṣṇa-saṅkīrtanam, if we perform this Kṛṣṇa saṅkīrtana, then immediately our core of heart, which is filled up with all dirty things, will be cleansed. For example, you can see practically all my disciples present here, they are coming from Western countries—Europe, America, or even in India, Parsis and other, Muhammadans, they are coming. But they are now pure, cleansed of all dirty things. In this movement, throughout the whole world, there are at least ten to twelve thousand devotees like that. And before this life they were addicted to all kinds of sinful life. We have summarized all sinful activities into four groups, namely illicit sex, meat-eating, intoxication and gambling. So all these ten to twelve thousand men who are now attached with this Kṛṣṇa consciousness movement, they are not committing these four pillars of sinful life.
Therefore our request is that you take to this chanting method. It is very easy: Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare, and gradually you shall become free from all sinful reaction of life. But one thing we must be very careful: that we should not commit again sinful life. If you chant Hare Kṛṣṇa mantra, you become free immediately from all sinful reaction. But if you commit again sinful life, that is your responsibility.