Now here, in this world, we have got experience that we want to love somebody—anyone; even in animal kingdom. A lion also loves the cubs. The love is there. Prema. It is called prema. So therefore this loving affair is there also in God. And when we come in contact with God, our dealings will be simply on the basis of love. I love Kṛṣṇa, or God, and Kṛṣṇa loves me. This is our exchange of feelings.
So in this way, the science of God, even without reading any Vedic literature—of course, that will help you—if you have deeply studied what is God, you can understand God. Because I am a sample of God, I am minute particle. Just like the particle of gold is gold. The drop of ocean water is also salty. The ocean is also salty, you can understand. Similarly, by studying our individuality, by studying our propensity, we can understand what is God. This is one side.
And here, God personally presents Himself, Kṛṣṇa. He says, yadā yadā hi dharmas . . . (break) ". . . the saintly devotees and to kill the demons, I appear." But mind that God is absolute. Either His deliverance of the devotee or killing of the demons, they are the same thing. Because we learn from the Vedic literature that demons who are killed by the Personality of Godhead, they also go to the same salvation, liberation point. Because he is killed by God, he's touched by God.