2. Blood and Nerves

If we perform an autopsy on a human being according to the methods and teachings of modern anatomy and physiology, we can put everything originating directly out of the blood next to everything built up from the outside, namely the nerve substance. Then the substances would appear to be the same. In fact, they are fundamentally different. The great and significant difference between them becomes clear if we trace the gradual development of life. We could quote a great deal from the most modern anatomy and physiology to provide further proof of this difference; however, we will not go into that right now but look at the question from the point of view of spiritual science instead.