In plain words
Look at a small example. Having laid the baby to sleep in the cradle, the mother is busy with her work upstairs. The moment the baby wakes in the cradle with a sudden cry, she flings that bit of straw down there, drops whatever is in her hands, and comes running. That is a mother's Prema. If you call ‘O God!’ just once, in anguish, God comes down in a flash and saves you, whatever state He is in. The moment this baby cries, the mother: ‘Oho! In which tāḷa is my baby crying? In which rāga is it crying?’: she does not stop to think so. In just the same way God does not ask at all how this fellow is praying. If one prays just once in anguish, He comes down without looking for any reason. In the same way, when Dhruva prayed, Viṣṇu appeared before him. ‘My child, what would you have?’ He said. “Svāmī! In my simplicity, sunk in ignorance, I came to pray to You asking for this and that. I came looking for a piece of glass. I have found a great diamond. Would anyone give up a pot of amṛta for the sake of a drop of water? Having seen a precious gem, would anyone cling to a bit of glass in his hand? Look, with both my hands I have taken hold of Your very feet. Other than You I need nothing,” said Dhruva. See: what he came wanting was one thing, but what he received was another.
You may come here wanting some one purpose. You may come for learning. You may come to earn some degree or other. But it is your good fortune that, in the midst of it, this sacred opportunity comes your way. But do I tell you to give up your studies here and now and stay? I never say that. And what did Viṣṇu say? “You came wanting something or other. What you came for has been granted its fruit. But go and fulfil your vow and then come back,” and He sent him home again.