All images and sensations, if idolatrously mistaken for Joy itself, soon honestly confessed themselves inadequate. All said, in a last resort, "It is not high. I am only a reminder. Look! Look! What do I remind you of?" CS Lewis

Self-deprecation is the appropriate response of any new convert, as he matches his stained soul against the purity of God.

I said to all the things that throng about the gateways of the senses: "Tell me of my God, since you are not He. Tell me something of Him." And they cried out in a great voice: "He made us." CS Lewis

J.R.R. Tolkien told a questioning correspondent, life's purpose is to know, praise, and thank God.

The longing for Joy is in itself Joy. When he recalled when he had experienced Joy, he was, in that recollection, experiencing Joy anew, though he knew it not. Joy was not a state; it was an arrow pointing to something beyond all states, something objective yet unattainable – at least in our earthly existence.