The most valuable thing the Psalms do for me is to express that same delight in God which made David dance...something astonishingly robust, virile, and spontaneous; something we may regard with an innocent envy and may hope to be infected by as we read...These poets knew far less reason than we for loving God. They did not know that He offered them eternal joy; still less that He would die to win it for them. Yet they express a longing for Him, for His mere presence, which comes only to the best Christians or to Christians in their best moments...I have...called this the "appetite for God" [rather] than "the love of God"...It has all the cheerful spontaneity of a natural, even a physical , desire."
C.S. Lewis
Reflections on the Psalms pp.155-157
