Alastair Roberts, on “The Anglicanism of C. S. Lewis,” in which he explores Lewis' generous, non-ideological vision of reality as a window into the spirit of Anglicanism writ large:

It seems to me that Lewis’s appeal has much to do with the fact that he had a rich imagination, a curious and brilliant mind, a generous and catholic spirit, a delight in, expansive attention to, and receptivity to reality, and a capacious conceptual and cultural world. While he had his firm convictions, he was not narrow-minded or -spirited. He was open to and had an appetite for the world and truth. He manifested the catholicity and magnanimity of one with a confident grasp on truth and reality, avoiding a fortress mentality, tribalism, or the incuriosity of the ideologue.

There is a sort of sapiential and cosmopolitan character to Lewis’s posture, a practice of receptive attention to and irenic engagement with a wide variety of voices and aspects of reality. As a result, one does not need to hold to a particular ideology, belong to a particular tribal camp or denomination, or hold a particular set of dogmas to find things to enjoy or appreciate in Lewis. Indeed, in works like Mere Christianity, Lewis was careful to accent those things that Christians of various denominations hold in common, rather than those things that distinguished his class or tribe. Lewis wrote and spoke as a man of strong convictions and as one with occasionally sharp differences with others, yet not as a sectarian, partisan, or an ideologue. […]

It seems to me much of the strength of Lewis comes from the fact that he closely attends to, delights in, and thinks and acts into a wider natural, social, and cultural world, a world he wants to share in with people of many different backgrounds, identities, beliefs, and times. His writing invites you into deeper appreciation of and attention to the world in which you already live, rather than calling you into a peculiar ideological, cultural, and social frame. He does, of course, write from a particular world, into which he invites you to be welcome: a distinctly British mid-century Oxonian scholarly world, which is also the world of its own cultural references to earlier worlds; he of course also encourages you to find those aspects of reality that that world shares in common with your own—for example, the experience of sensucht, of friendship, of reading.