5. The Physical World as an Expression of Spiritual Forces and Beings.

We have now come to the point when the ego itself, the real man, begins to work upon what has been given him and with which he has been connected in the physical world. The forces of the various spiritual members of man that are at work in the period before birth, are first active through the corresponding members of the maternal organism. During the period just before birth, the human being is able to live only because he is enveloped on all sides by the maternal sheath. At birth the human being thrusts away this physical maternal sheath. At first, it is only the physical body that becomes free; the etheric body—the clairvoyant sees this—is still enveloped by a maternal etheric sheath and remains protected and guarded by this sheath until the time of the second dentition. It is an important point in the evolution of humanity when the maternal etheric sheath is cast off and a second birth takes place. Then, when the etheric body has cast off its maternal sheath, the etheric body as such is born, it becomes free. This is an event of great significance for the evolution of a human being. Until the change of teeth there is still the possibility of the bodily structures remaining elastic in one direction or another, of changing in certain respects. From this time onwards they will only be subject to growth. When the change of teeth takes place, the development of the bodily forms has, in essentials, been completed. It is important that this should be known. Hence, everything that from outside is to become a formative influence on the physical body, to be a permanent quality of it, must be thoroughly taken into consideration and carefully formulated until the time of the change of teeth. But now, every external factor—light and color, for example—that has an effect upon the human being, has a formative effect upon his finer members and organs. All external factors have an essentially formative effect until the seventh year of life. Hence, it is not a matter of indifference what color, what environment the child has around it, and what he is allowed to do. If you were never to use your hands, they would atrophy. The same applies to all organs; the more delicate ones also develop through activity. The effect of red, for example, upon the finer organs in the hurnan being, is different from the effect of blue. Thus the effect differs according to the color that is around the child. While there is activity, the organs develop. The eye sees by habit, certainly, but what it sees has an effect upon the whole of man's nature. For the child's development it is not a matter of indifference whether the eye is looking at red or blue. It is here that spiritual science, in a time by no means far distant, will prove to be eminently practical. Why do we put spiritual science into practice? We do this out of love for man, because it equips us even in this sphere of activity to play a useful part in such subtle matters.