III. Understanding the Human Being: A Foundation for Education

You need learn only a little embryology to learn that the heart slowly develops in the organs of the blood circulatory system, in the system of vessels. You can see that the heart is not there first, with the circulatory system developing from it, but that the circulatory system develops slowly, with the heart as the final result. You can see directly from embryology that the situation is just as I have described it. Therefore, when we consider things from a spiritual-scientific perspective, we need to think of the human liver not simply as a liver, the human spleen not simply as a spleen in the way these things appear when we dissect a corpse in the laboratory. Instead we need to try to investigate the significance of these organs in the spirit-soul life. We do not see the eye, or any of the other organs, as merely some physical tool. Although it is commonly believed that the liver is only an organ in the digestive system, it has a great deal to do with human spiritual life.