Prabhupāda:
'nitya-mukta'-nitya kṛṣṇa-caraṇe unmukha
'kṛṣṇa-pāriṣada' nāma, bhuñje sevā-sukha
Yesterday we have been discussing two kinds of living entities. One class, nitya-mukta, eternally liberated, they never come to this material world. They are eternally liberated. And another class, just like we are, conditioned. We are eternally conditioned. Eternally conditioned means we do not know when we have been conditioned like this. It is not possible to trace out the history. Because living entity, by nature, he is not conditioned. But actually we see that we are conditioned, and there is no possibility to trace out the history. Many, many Brahmā's life... Not only one Brahmā's, there are so many Brahmās changed, and we are conditioned. So therefore we are called eternally conditioned.
Now this... What is the difference between the two? Those who are eternally free, liberated, they are godly. They are always ready to render transcendental loving service to the Lord. They are satisfied in that way. Just like mother is satisfied simply by loving child, or friend is satisfied simply by loving. Of course, that sort of love is not possible in this material world, but there are some rare instances. At least we can get an idea that... Similarly, the eternal liberated souls, they are satisfied simply by loving Kṛṣṇa. That is their satisfaction. Everyone wants to love. That is natural propensity. Everyone. When there is no loving object, then in this material world we sometimes love cats and dogs. You see? Because I must love somebody. If I don't find any suitable person lovable, then I turn my love to some hobby, to some animal, like that, because the love is there. So this is dormant. Our love for Kṛṣṇa is dormant. It is within us, but because we have no information of Kṛṣṇa, therefore we are reposing our love to something which is frustration. That is not the object of love. Therefore we are frustrated. So many instances we have got, we did not describe. But here in this material world, love is 99.9% all frustration, because the love is not reposed to the proper place. The proper place is Kṛṣṇa. If we love Kṛṣṇa, then we can love everyone. Just like if we pour water on the root of the tree then the other parts of the tree, leaves and flowers and fruits and branches, automatically... So if we learn to love Kṛṣṇa, then we can perfectly love others.