When one becomes devotee, he's not a fool. Pure devotee is full knowledge. Bahūnāṁ janmanām ante jñānavān māṁ prapadyate (BG 7.19). After many, many births, when one is actually jñānavān, actually wise, he surrenders to Kṛṣṇa. How? Vāsudevaḥ sarvam iti sa mahātmā sudurlabhaḥ (BG 7.19). He surrenders to Kṛṣṇa. "Kṛṣṇa, I forgot You so long. Now I understand that You are everything." That is knowledge. That is real knowledge. Therefore it is said, jñānena vairāgya-vijṛmbhitena. This jñāna means vairāgya—no more attachment for serving the so-called society, friendship, love, country. These are all foolishly engagement. But people will not understand that. They'll think that, "This is my first service. This is my first . . ." How long you'll serve, my dear sir? But if you serve Kṛṣṇa, this service automatically becomes possible.
Just like we are giving prasādam every week on Sunday, distributing prasādam. That is the bhakti-yoga. Bhakti-yoga means that sympathetic to persons who are not devotee of Kṛṣṇa. Devotee or not devotee, by eating kṛṣṇa-prasādam, he'll gradually become devotee. As yesterday I explained that kṛṣṇa-bhakti begins from the tongue, sevonmukhe hi jihvādau svayam eva sphuraty adaḥ (Brs. 1.2.234). If you engage your tongue in the service of the Lord, then Lord manifests. He reveals Himself. Sevonmukhe hi jihvādau. How it is possible that jihvādau, beginning from the tongue? This is chanting Hare Kṛṣṇa mantra. Jihvādau, chant Hare Kṛṣṇa. Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare (devotees also chant). Very easy. You can begin Kṛṣṇa consciousness simply by chanting. And as soon as you chant, go on chanting, then ceto-darpaṇa-mārjanam (CC Antya 20.12). Ceto-darpaṇa-mārjanam means cleansing the heart. Because all congestion, all dirty things within the heart—"I am this. I am that. I am this. I am that"—then if you chant, then gradually you'll understand that you are spirit soul; you are not Indian, nor American, nor this, nor that, nor that. This is self-realization.