Lecture VIII
Now you will realize that everything material, right into the form, is a result of what stands actively behind this material. There are, for instance, beings like those I have just described to you which are unable to transform their astral body because they lack a spiritual nature. No ego works upon their astral body. This astral body with all its soul-experiences must come to expression in a material form. Yet the material form of beings through which no ego glows cannot be visible in our evolutionary phase. It cannot be visible because it lies one degree lower than our visible matter. I beg you to grasp clearly what is meant by that. If one tries to describe what constitutes a physical body, one can say that one sees it. One cannot see the etheric body because as regards substance it lies a stage higher than the physical body. Still less can one see the astral body because it lies higher still. But beneath physical matter there are also substances which cannot be seen. Of all matter only a middle strip or band is perceptible, just that strip which constitutes physical matter, perceptible to the physical eye. Just as substance continues upwards as physical foundation for the etheric and astral, so does it continue downwards and again becomes invisible. And now that we have considered the different members of the human being we shall be able to set before us the membering of these other beings.