II. Introductory Explanations Concerning the Nature of Man

If you contemplate an object of the mineral world, for instance, a rock crystal, through the eye of a clairvoyant, eliminating for this purpose the physical substance, by deviating as it were, your attention from it you would see nothing in the space occupied by the physical crystal. This space is void. But if you contemplate in the same way a living being, a plant, an animal, or a human being, this space occupied by the physical body will not be empty, for it will be filled up by a kind of shape of light, and this is the above-mentioned etheric body.