Now, my dear terrestrial friend, you know what the Earth is in the universe; you know something of what the heavens contain; and you know also what Life is, and what Death is. We shall soon see the dawn of morning, which puts spirits to flight and brings our conversations to an end, as the approach of your terrestrial day causes the brightness of Venus to fade away. But I should like to add to the preceding ideas a very interesting remark suggested by the same observations. It is this: If you set out from the Earth at the moment that a flash of lightning bursts forth, and if you travelled for an hour or more with the light, you would see the lightning as long as you continued to look at it. This fact is established by the foregoing principles. But if, instead of travelling _exactly_ with the velocity of light, you were to travel with a little less velocity; note the observation that you might make: I will suppose that this voyage away from the Earth, during which you look at the lightning, lasts a minute. I will suppose also, that the lightning lasts a thousandth part of a second. You will continue to see the lightning during 60,000 times its duration. In our first supposition this voyage is identical with that of light. Light has occupied 60,000 tenths of seconds to go from the Earth to the point in space where you are. Your voyage and that of light have co-existed. Now if instead of flying with just the same velocity as light, you had flown a little less quickly, and if you had employed a thousandth part of a second more to arrive at the same point, instead of always seeing _the same moment of the lightning_, you would have seen, successively, the different moments which constituted the total duration of the lightning, equal to 1000 parts of a second. In this whole minute you would have had time to see first the beginning of the flash of lightning, and could analyse the development of it, the successive phases of it, to the very end. You may imagine what strange discoveries one could make in the secret nature of lightning, increased 60,000 times in the order of its duration, what frightful battles you would have time to discover in the flames! what pandemonium! what unlucky atoms! what a world hidden by its volatile nature from the imperfect eyes of mortals! [Sidenote: Vision of the analysing eye.] If you could see by your imagination sufficiently, to separate and count the atoms which constitute the body of a man, that body would disappear before you, for it consists of thousands of millions of atoms in motion, and to the analysing eye it would be a nebula animated by the forces of gravitation. Did not Swedenborg imagine that the universe by which he was surrounded, seen as a whole, was in the form of an immense man? That was anthropomorphism. But there are analogies everywhere. What we know most certainly is, that things _are not_ what they appear to be, either in space or in time. But let us return to the delayed flash of lightning.