VISION IS NOT DEPENDENT ON THE AFFECTION OF THE MEDIUM.
Here is another important (related) question. If there existed another world and organism which had no relation with our world, and if on the surface of the sky was an eye that was looking, would it perceive this other world at a moderate distance, or would it have no relation thereto? This question will be considered later.[169] Now however we shall give a further proof that the medium has nothing to do with vision. If the air were affected, it would experience a material affection, similar to the figure impressed on wax. In this case, a certain part of the object would be impressed on a certain part of the air; and consequently, the part of the air nearest to the eye would receive a part of the visible object, and this part would be of a size equal to that of the pupil. Now a visible object is seen in its entirety, and all those who are in the air equally see it, whether they behold it from the front, or side, or whether they be one behind the other, without however forming mutual obstacles. This proves that every part of the air contains the entire visible object. This cannot be explained by any corporeal affection, but by higher laws, suitable to the soul, and to the (universal) organism which everywhere responds to itself.