How to think of Heaven then, which Lewis says “is, by definition, outside our experience,” when the fact is that “all intelligible descriptions must be of things within our experience” is a question that Lewis took seriously, especially since the scriptural imagery “[a]t first sight . . . chill[ed], rather than awake[ned], [his] desire.” He asked how a “typical modern” like himself might interpret the heavenly concept of glory. The first idea of fame suggested to him hellish competition; the second idea of brightness suggested the “ridiculous” image of becoming “a kind of living electric light bulb.” Indeed, he contends that the “disease” of the “discrepancy” between “Spirit and Nature” within us makes it difficult for Christians themselves...