IX. Pictorial Representations as a Necessary Educational Tool for Mental Training
From this level of present-day man, the teacher pointed the student to a higher level. Just as man has developed from a state similar to that of a plant, so too will he purify his instincts and desires to a higher, chaste level. The teacher showed the student the structures in the physical body of man through which the higher levels of consciousness can be attained and human substance can in turn become a substance similar to that of plants. Every being must use a physical body if it wants to appear on earth. But the body of man will change more and more in the future. We distinguish between a descending and an ascending development with regard to the human organs. Some human organs are in a state of descending development; in the course of time, which admittedly counts in millennia, the human being will discard them. Other organs are in the process of becoming; in the future they will undergo an upward development, for example the human larynx; it is only at the beginning of its development. The human heart will undergo a further upward development, becoming a completely different organ in the future. While other organs have already passed their zenith, becoming detached from human nature and withering away, we have an organ in the heart that is only at the beginning of its development.