"If any man could arrive at the exterior limit, or take the wings of a bird and fly upward, like a fish who puts his head out and sees the world, he would see a world beyond; and, if the nature of man could sustain this sight, he would acknowledge that this was the place of the true heaven and the true light and the true stars. For this earth, and the stones, and the entire region which surrounds us, are spoilt and corroded..."