Prahlāda Mahārāja says that to attain this Kṛṣṇa consciousness is not very difficult task. Actually it is so, it is not very difficult task. Simply we have to make association, and that association is very easily made, simply by chanting.
This process we are spreading, Hare Kṛṣṇa movement. If you simply chant Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare, you will gradually realize ceto-darpaṇa-mārjanam (CC Antya 20.12).
The first status, the first stage of realization, is ceto-darpaṇa-mārjanam, cleansing the heart. At the present moment my heart is not cleansed. I am thinking I am matter, I am American, I am this, I am that, I am . . . but when the heart is cleansed, then I understand that I don't belong to this material world. Ahaṁ brahmāsmi: "I am brahma. I am the spiritual spark."
So this movement, Kṛṣṇa consciousness movement, is the greatest boon for the human society, and we request everyone to take advantage of this movement. And the process is very easy: simply chanting Hare Kṛṣṇa. And these boys and girls who have taken to this movement, you can discuss with them, or you can discuss with me.
Of course, the more you practice you will understand, because unless the heart is cleansed . . . it takes some time. Anything, any education, any schooling, it takes a little time to understand. So . . . but it does not take very much, a great deal of time. It is very easily understood, because Kṛṣṇa, or God, is also situated within your heart. If you sincerely want association of God, He is already there with you as a friend. Just like in a tree two birds are sitting—these are Vedic information—two birds are sitting in one tree, in friendly terms.
Similarly, bird . . . or Kṛṣṇa and yourself are just like two birds, and both of you are sitting in this tree of body. The one bird, the jīva soul, or the part-and-parcel individual soul, he is eating the fruit of this body, the fruit of the tree. This body means . . . what is called? "As you sow, so you . . ."