Lecture II

When we observe the result of an act of will, this is only something we are able to look at externally. We do not know what has happened inwardly when a will impulse moves our arm. We only see the arm move; that is, we observe the outer happening afterward. Thus we accompany the manifestations of our will with mental images; they are mediated organically through the metabolic system and the limb system related to it. So it is only in part of the human organism, in the metabolic system—which is the bodily aspect of the soul's will activity—that we experience the reality of all three dimensions of space. In our ordinary process of knowing the reality of the three dimensions cannot be grasped. It cannot be grasped, as we will see, until we are able to look with the same clarity into our will activity as we normally do into our mental activity. It cannot come about in our ordinary way of knowing but only with spiritual-scientific knowledge. It is through the activation of the entire man, of the entire limb-and-metabolic system, that our subconscious experience of the three dimensions comes about. What happens is that what is contained in the metabolic-limb system is lifted into the rhythmic system. There it is experienced in its two-dimensional aspect, not in its total reality. When experienced in two dimensions, the height dimension has already become abstract. Only in the subconscious do we normally experience the height dimension.