2. Blood and Nerves

In fact, as far as its material composition is concerned, the nerve substance we have in us is an extraterrestrial element. All this can be very clearly expressed in a symbol. As you remember, I once lectured here on anthroposophy in a more specific sense and listed the human senses. Usually people distinguish only five senses, but we counted twelve then. Human beings have twelve senses if everything that can really be called a sense is taken into account. Ultimately, our senses are nothing but points of departure from which our nerves extend into us.