Our Thought Life in Sleep and Wakefulness and in the Afterlife

So it is a matter of our really being able to understand the physical world precisely because we can correctly grasp the relationship of this physical world to the spiritual world. It is not enough to say that the physical world is based on a spiritual world. At best, this leads to the trivial idea that there is the physical human being, and somewhere there floats a spiritual archetype. You cannot arrive at a conception of the physical human being. You can only understand the physical human being in such a way that the spiritual world stands in a completely different relationship to one half of the human being than to the other half, and that between them there is a point of equilibrium untouched by either, which constitutes human freedom.