The position in which the Church would then find herself is well conveyed in Plato‘s conceit, in the Phaedo, of the true surface of the Earth. We live, Plato suggests, in a large but local hollow, and what we take to be the air is really a sediment of fog. If one day we could make our way to the upper levels of the surface of the Earth, we should there breathe the pure ether and should see the light of the Sun and stars direct; and then we should realize how dim and blurred had been our vision down in the hollow, where we see the heavenly bodies, through the murky atmosphere in which we breathe, as imperfectly as the fishes see them through the water in which they swim. This Platonic conceit is a good simile for the life of the Church Militant on Earth; but the truth cannot be put better than it has been by Saint Augustine.