C. S. Lewis, Letters on Living the Faith, ed. David C. Downing (New York: HarperOne, 2026)

The unstated goal of this work that David C. Downing has edited is to provide the reader with a sampling of advice via responses to theological questions that C. S. Lewis’s letter-correspondents put to him from the years 1941 to 1963. In the process, Downing structures the volume as follows: an introduction on Lewis as a mentor via letters (“C. S. Lewis as A Mentor by Mail,” ix–xiii), Lewis’s responses grouped into twelve topics (see below), and two small chapters, one about Lewis (“About C. S. Lewis,” 235) and another about Downing (“About the Editor at Large,” 237–38).
In the introduction, Downing notes that the number of Lewis’s surviving private letters span three volumes and 3,500 pages and include letters to friends, acquaintances, and complete strangers who admired Lewis and asked him for advice. He has culled through them and grouped this advice around the following twelve topics:
- “On Prayer” (1–12)
- “Meditations on Love” (13–24)
- “Letters to Spiritual Seekers” (25–60)
- “On Christian Formation” (61–78)
- “Putting Faith into Practice” (79–120)
- “Questions About Christian Theology and Morality” (121–58)
- “Questions about the Bible” (159–74)
- “Psychology and Spirituality” (175–84)
- “Letters to Roman Catholics and About Catholic Doctrines” (185–200)
- “Confessions About His Own Struggles” (201–12)
- “Questions about Narnia” (213–18)
- “On Sorrow and Death, Consolation and Courage” (219–34)
To give the reader an idea of each section, I will quote from one (sometimes more than one) or part of one of Lewis’s bits of advice for each topic. In response to the advantages of liturgical prayer, Lewis said, “The advantage of a fixed form of service is that we know what is coming. Ex tempore public prayer has this difficulty: we don’t know whether we can mentally join in it until we’ve heard it—it might be phony or heretical. We are therefore called upon to carry on a critical and a devotional activity at the same moment: two things hardly compatible” (7)
In a letter to Lewis’s brother about loving one’s enemies, he noted that “I pray every night for the people I am most tempted to hate or despise (the present list is Stalin, Hitler Mussolini . . .)” (15).
To a woman who had recently become a Christian, which pushes back against the heightened emotionalism of some strains of Christianity, Lewis adviced that she does not “count on any remarkable sensations, either at this or your first (or fifty-first) Communion. God gives these or not as He pleases. Their presence does not prove that things are especially well, nor their absence that things are wrong. The intention, the obedience, is what matters” (32–33).
To one correspondent, Lewis observed the following paradox that is at the heart of the Christian faith: “the whole point is that you can keep forever only what you give up” (64).
In response to the state of the world in December 1946 and the proliferation of news stories about it, which still applies to our world today, especially to social media, Lewis said, “It is one of the evils of rapid diffusion of news that the sorrows of all the world come to us every morning. I think each village was meant to feel pity for its own sick and poor whom it can help and I doubt if it is the duty of any private person to fix his mind on ills which he cannot help. (This may even become an escape from the works of charity we really can do to those we know)” (86).
Lewis evidently abominated the commercial aspects of Christmas, confessing “Christmas cards in general and the whole vast commercial drive called ‘Xmas’ are one of my pet abominations: I wish they could die away and leave the Christian feast unentangled. Not of course that even secular festivities are, on their own level, an evil: but the labored and organized jollity of this—the spurious childlikeness—the half-hearted and sometimes rather profane attempts to keep up some superficial connection with the Nativity—are disgusting” (86–87).
There seems to be nothing on which Lewis would not comment, for he noted in one letter the following about masturbation: “For me the real evil of masturbation would be that it takes an appetite which, in lawful use, leads the individual out of himself to complete (and correct) his own personality in that of another (and finally in children and grandchildren) and turns it back: sends the man back into the prison of himself, there to keep a harem of imaginary brides” (110).
Lewis noted the following about seeing the nature through the lens of the supernatural: “You don’t see Nature till you believe in the Supernatural: don’t get the full, hot, salty tang of her except by contrast with the pure water from beyond the world” (129).
Concerning the Inspiration of Scripture, Lewis wrote: “I myself think of [Inspiration] as analogous to the Incarnation—that, as in Christ a human soul-and-body are taken up and made the vehicle of Deity, so in Scripture, a mass of human legend, history, moral teaching etc. are taken up and made the vehicle of God’s Word” (167).
Concerning the constancy of faith despite one’s feelings, Lewis observed, “It is a great joy to be able to ‘feel’ God’s love as a reality, and one must give thanks for it and use it. But you must be prepared for the feeling dying away again, for feelings are by nature impermanent. The great thing is to continue to believe when the feeling is absent: and these periods do quite as much for one as those when the feeling is present” (183–84).
In response to a question why Lewis was not a Roman Catholic, he said: “The whole setup of modern Romanism [with its dogma of the Blessed Virgin Mary, papalism, and Transubstantiation] seems to me to be as much a provincial or local variation from the central, ancient tradition as any particular Protestant sect is. I must therefore reject their claim: though this does not mean rejecting particular things they say” (188).
Lewis was transparent about the difficulty in believing in an afterlife, noting that it was also difficult not to believe in it: “Yes, people do find it hard to keep on feeling as if you believed in the next life: but then it is just as hard to keep on feeling as if you believed you were going to be nothing after death. I know this because in the old days before I was a Christian I used to try” (210).
To a mother who was concerned that her child loved Aslan more than Jesus, Lewis advised her to have her son pray the following prayer: “Dear God, if the things I’ve been thinking and feeling about those books are things You don’t like and are bad for me, please take way those feelings and thoughts. But if they are not bad, then please stop me from worrying about them” (216).
In response to his being awakened from a coma close to the time of his death in 1963, Lewis said, “I was unexpectedly revived from a long coma . . . but it would have been a luxuriously easy passage and one almost . . . regrets having the door shut in one’s face. Ought we to honor Lazarus rather than Stephen as the protomartyr?” (233–340.
This work is compact, unique, enjoyable, and reads as if it were almost like you were sitting down with Lewis and asking him the questions that you always wanted him to answer. It was a delight to read and I encourage you to pick up your copy from HarperOne today!
I am grateful for my gratis copy of this work from HarperOne, which in no way influenced my reading of it.


