Pradyumna: (reading) ". . . propensity expands just as a vibration of light or air expands, but we do not know where it ends. The Nectar of Devotion teaches us the science of loving every one of the living entities perfectly by the easy method of loving Kṛṣṇa. We have failed to create peace and harmony in human society even by such great attempts as the United Nations because we do not know the right method."
Prabhupāda: Hmm. The example is just like there is air vibration, water vibration, the radio message. In one place the vibration is made, and it goes like waves. It expands. Very quickly, within a second, it expands seven times the earth, so far we have heard. Or if you throw one stone on the lake, they'll become a circle, circle, and the circle expands, unless it goes to the limit. So our loving propensity is there, and it should expand. Ultimately, it should reach the lotus feet of the Lord. Then it will be perfect. So this is being explained.
So nitya-siddha kṛṣṇa-bhakti. In the Caitanya-caritāmṛta it is said, nitya-siddha kṛṣṇa-bhakti. Our love for Kṛṣṇa is there already, but it is being choked up by material condition. I want to love, but some blind leader, he comes, he says that, "You love your this country, your society, humanity." And you love your society, but you cut throat of another society. This is going on.
Because it is imperfect, one side they're teaching, "Love your nation," and cut the throat of another nation. So this kind of love, or this kind of loving propensity will not be ever satisfied. We shall always remain unsatisfied, because this is artificial. The same example: If you want to love, then you have to pour water on the root of the tree. Then it will be all right. Otherwise, if you manufacture so many ways of love, then certainly you'll be confused and frustrated.