C.S. Lewis on Prayer

From C.S. Lewis' The Silver Chair (Aslan the Lion represents Jesus)
"I was wondering - I mean - could there be some mistake? Because nobody called me and Scrubb, you know. It was we who asked to come here. Scrubb said we were to call to  - to Somebody - it was a name I wouldn't know - and perhaps the Somebody would let us in. And we did, and then we found the door open."
"You would not have called to me unless I had been calling to you." said the Lion