2. Human Duality
If we were to draw a sketch of this, we could do it by imagining the world on the one hand, acting from all directions upon our senses, and the blood exposing itself like a tablet to the impressions of this world; that would be our upper organism. And now let us imagine that we could contract this whole outer world into single organs, thus forming an extract of this world; that we could then transfer this extract into our interior in such a way that what is working from all directions now acts upon the blood from the other side of the tablet. We should then have formed in a most extraordinary way a pictorial scheme of the exterior and the interior of the human organism. And we might already to a certain extent be able to say that the brain actually corresponds to our inner organism, in so far as this latter occupies the breast and the abdominal cavity. The world has, as it were been placed in our inner man.