Likewise has the beauteous joining placed a thousand columns there in graceful order; which stable, precious, shining, with their stability carry on the whole work of the church, with their preciousness enrich it, with their shine make it clear. Their state indeed is lofty and high, their polish true and splendid, their order handsome and geometric, their beauty fit and useful, their use gracious and remarkable, their stability unhurt and sharp. A splendid double pomp of windows displays riddles to the eyes, inscribing the citizens of the Heavenly City and the arms whereby they tame the Stygian tyrant.{22} And two are greater, like two lights; of these the rounded blaze, looking upon the quarters of north and south, with its double light, lords it over all windows. They can be compared to the common stars, but these two are one like the sun, the other like the moon. So do these two candles lighten the head of the Church. With living and various colours they mimic the rainbow, not mimic indeed, but rather excel, for the sun when it is reflected in the clouds makes a rainbow: these two shine without sun, glitter without cloud. These things, described but puerilely, have the weight of an allegory. Without it seems but as a shell, but within lies the kernel. Without it is as wax, but within is combed honey; and fire lightens more pleasantly in the shade. For foundation, wall roof, white carved stone, marble smooth, conspicuous and black, the double order of windows, and the twin windows, which, as it were, look upon the regions of north and south, are great indeed, in themselves, but figure greater things.