Excerpt About What Is
Reified concepts are the main barrier to penetrating to what is, and the basic concepts that form our experience are physical. You are more convinced, for instance, in the existence of your body than in the existence of inner freedom, because while your body is a physical thing, freedom is not a physical thing. It is particularly these physical concepts that we have to penetrate in order to perceive what is. The ground of the personal mind is constituted by physical concepts.