From CS Lewis's essay:
...that is enough to raise our thoughts to what may happen when the redeemed soul, beyond all hope and nearly beyond belief, learns at last that she has pleased Him whom she was created to please. There will be no room for vanity then. She will be free from the miserable illusion that it is her doing. With no taint of what we should now call self-approval she will most innocently rejoice in the thing that God has made her to be, and the moment which heals her old inferiority complex for ever will also drown her pride deeper than Prospero’s book. Perfect humility dispenses with modesty. If God is satisfied with the work, the work may be satisfied with itself; “it is not for her to bandy compliments with her Sovereign.” I can imagine someone saying that he dislikes my idea of heaven as a place where we are patted on the back. But proud misunderstanding is behind that dislike. In the end that Face which is the delight or the terror of the universe must be turned upon each of us either with one expression or with the other, either conferring glory inexpressible or inflicting shame that can never be cured or disguised. I read in a periodical the other day that the fundamental thing is how we think of God. By God Himself, it is not! How God thinks of us is not only more important, but infinitely more important. Indeed, how we think of Him is of no importance except in so far as it is related to how He thinks of us. It is written that we shall “stand before” Him, shall appear, shall be inspected. The promise of glory is the promise, almost incredible and only possible by the work of Christ, that some of us, that any of us who really chooses, shall actually survive that examination, shall find approval, shall please God. To please God...to be a real ingredient in the divine happiness...to be loved by God, not merely pitied, but delighted in as an artist delights in his work or a father in a son—it seems impossible, a weight or burden of glory which our thoughts can hardly sustain. But so it is.
Read the essay in its entirety here.