" Lewis's point is that Feurbach and Freud have cast a spell over Western culture, aiming to convince us that they are right and we are wrong. They present their speculative theories as if they were self-evident truths: Only a fool would think there is a God! Lewis helps us see that, in the first place, their approach is only a theory, and in the second, it is not a particularly plausible theory. It's only one way of looking at things - which is what the word theory really means - and there are other (and better) ways of seeing. Lewis's story gives us another way of looking at this "projection" theory, which makes us see that it is far more vulnerable than we might otherwise have realized. "

― Alister E. McGrath