Prabhupada's lecture - Śrīmad-Bhāgavatam 1.8.21 - New York, April 13, 1973
Sevonmukhe hi jihvādau [Brs. 1.2.234]. The process is sevonmukha, service. Service, beginning with the tongue, vāsudeva realization is possible. The service, the first service is śravaṇaṁ kīrtanam [SB 7.5.23]. Chant Hare Kṛṣṇa mantra and hear repeatedly and take prasāda. These are two business of the tongue. So you'll realize. Very simple method. Sevonmukhe hi jihvādau svayam... Kṛṣṇa will reveal, not that by your endeavor you can understand Kṛṣṇa, but your endeavor in the loving service, that will make you qualified. Kṛṣṇa will reveal. Svayam eva sphuraty adaḥ. Kṛṣṇa is very much anxious to take you back home, back to Godhead. But we are stubborn. We do not wish. So He's always finding out the opportunity how you can be taken back home, back to Godhead. Just like affectionate father. Rascal son left his father, loitering in the street and have no shelter, no food, suffering so much.
The father is more anxious to take the boy home. Similarly, Kṛṣṇa is the supreme father. All these living entities within this material world, they're exactly like the misled child of a big, rich man, loitering in the street. Therefore the greatest benefit to the human society is to give him Kṛṣṇa consciousness. Greatest... You cannot give any benefit; any kind of material profit will not satisfy the living entity. If he's given this Kṛṣṇa consciousness... Just like the same process. A bewildered boy is loitering in the street. If he's reminded, "My dear boy, why you are suffering so much? You are the son of such and such very rich man. Your father has got so much property. Why you are loitering in the street?" And if he comes to his consciousness: "Yes, I am the son of such and such big man. Why shall I loiter in the street?" He goes back home. Yad gatvā na nivartante