Just like a child, he does not know how he is produced. I know. I asked my mother in my childhood, "My dear mother, how did I come out from your belly?" I still remember. So my mother showed me her navel: "You come out from this place." So anyway, a child cannot understand, but when he grows up, he understands everything. So how Krsna consciousness acts, how this transcendental sound cleanses your heart, you may not understand in the beginning, but if you take to it and if you practice it, then you understand.
Lecture on Srimad-Bhagavatam 6.1.7, San Francisco, March 1, 1967