I did not like this. Nor did I know enough about nature poetry and paganism, monotheism in other cultures, or Meditteranean cultures, to appreciate all his insights.
What I think I did appreciate, and still do, was the way in which Lewis explains the poetry of the Psalms, the "beauty of the Law," (as in Psalm 119), love of nature, "second meanings" in the Psalms, and most of all, the life-enhancing chapter called "A Word about Praising." John Piper developed this chapter into a whole theology. (See Confessions of a Christian Hedonist.) But the most poetic explanation lies here: "I had never noticed that all enjoyment spontaneously overflows into praise . . . I had not noticed how the humblest, and at the same time the most balanced and capacious, minds, praised most, while cranks, misfits and malconents praised least . . . Praise almost seems to be inner health made audible . . . The Psalmists in telling everyone to praise God are doing what all men do when they speak of what they care about."
That chapter is one of the most enlightening and enchanting (in the literal sense) series of marks that have ever been made on paper, I think. Lewis works a powerful counter-spell to the curse of the reductionists, whom he soundly defeats in argument, re-enchanting the world with the glory of God. I see Lewis' idea confirmed every day -- when my children call me to see a funny scene in a cartoon, or a beautiful sea shell on the beach, for example.
What I found on my first reading of this book remains with me, and grows as I learn more of life. I've also come to appreciate Lewis' take on Scripture, though I am not sure he is completely right. Lewis differs from both skeptic and inerracist in that he makes no a priori assumptions, either that there are no mistakes in Scripture, or that God cannot do miracles. This allows him to be frank and take a truly empirical approach. His conclusion is that the Bible is inspired not like the Koran is said to be, written word-for-word in heaven before time began, but as "the same sort of material as any other literature . . . taken into the service of God's word." Those who see only a human literature are like illiterates who see only ink blots on paper, and are unable to see a poem. Lewis also hints that the best pagan philosophy and poetry can be "taken up" into God's revelation in a similar, though less authoritative, manner.
If all that gives you the impression that Lewis covers a lot of territory, with little detailed discussion of most individual psalms, that's true.
Author, Jesus and the Religions of Man