I think we delight to praise what we enjoy because the praise not merely expresses but completes the enjoyment; it is its appointed consummation. If it were possible for a created soul fully to ‘appreciate,’ that is, to love and delight in, the worthiest object of all, and simultaneously at every moment to give this delight perfect expression, then that soul would be in supreme blessedness. . . . Our joy is no more separable from the praise in which it liberates and utters itself than the brightness a mirror receives is separable from the brightness it sheds.
C. S. Lewis, The Joyful Christian
God’s Invitation to Joy