In other words, what Lewis admired most was not simply this or that medieval belief or doctrine, but rather the whole way of viewing the world, the whole ensemble, the whole intellectual “atmosphere” of what I have called the Long Middle Ages, and it was that which he, as the modern Boethius, felt it was vital to preserve, explain, and make intelligible, even within modernity. In short, Lewis perceived that for the medieval period, the natural world, like so many stained-glass windows, was, as it were, transparent to a light from beyond this world. What are for us merely natural processes
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