Lecture One

The three dimensions have really become so abstract for man that he would find it extremely difficult to train himself to feel that by living in them he is taking part in certain movements of the Earth and the planetary system. A spiritual-scientific method of thought however can be applied to our knowledge of Man. Let us therefore begin by seeking for a right understanding of the three dimensions. It is difficult to attain; but we shall more easily raise ourselves to this spatial knowledge of Man if we consider, not the three lines of space standing at right angles, but three level planes. Consider for a moment the following. We shall readily perceive that our symmetry has something to do with our thinking. If we observe, we shall discover an elementary natural gesture that we make if we wish to express decisive thinking in dumb show. When we place the finger on the nose and move through this plane here (a drawing is made), we are moving through the vertical symmetry plane which divides us into a left and a right Man. This plane passing through the nose and through the whole body, is the plane of symmetry, and is that of which one can become conscious as having to do with all the discriminating that goes on within us, all the thinking and judging that discriminates and divides. Starting from this elementary gesture, it is actually possible to become aware of how in all one's functions as Man one has to do with this plane.