The Sons of Fire act upon the etheric body in so far as the independent formation of the human being becomes imprinted upon it. Through their means it comes to pass that human beings are again conscious of themselves, as such, every time the body is renewed. Thus a kind of memory is bestowed on the etheric body through the Sons of Fire. The Sons of Life act on the physical body in such a way that it is able to become the expression of the astral body which has now become independent. They thus make it possible for the physical body to become a physiognomic copy of its astral body. On the other hand, higher spiritual beings, in particular the Lords of Form and of Motion, reach down into the physical and etheric bodies, as far as these are developing during the Sun periods, regardless of the independent astral body. Their intervention comes from the Sun, in the manner described above. Under the influence of such facts, the human being gradually matures to a point where it can develop within itself the germ of the Spirit-Self just as during the second half of the Saturn evolution it developed the germ of the Spirit-Man and on the Sun that of the Life-Spirit. Thereby all the Moon conditions are changed. Human beings have not only become more noble and refined through successive transformations and renewals, but they have also gained in power. For this reason the picture-consciousness was more and more maintained during the Sun periods. It also gained influence in the formation of the physical and etheric bodies, which hitherto had been formed entirely by the action of the Sun-beings. What took place on the Moon through human beings and the Spirits connected with them became more and more like that which had formerly been effected by the Sun with its higher beings. The consequence was that those Sun-beings were able more and more to concentrate their forces on their own evolution. By this means the Moon became, after a time, mature enough to be again re-united with the Sun. To spiritual vision, these occurrences take place as follows: The “rebellious Moon-beings” had been gradually overcome by the Sun-beings and compelled to submit to them in such a manner, that their activities became a part of and subordinate to the activities of the Sun-beings. It is true that this happened only after the lapse of long ages during which the Moon periods had become shorter and shorter, and the Sun periods longer and longer. Now there again comes an evolution during which the Sun and Moon form one world-organism. By this time the physical human body has become quite etheric.