The actual Moon evolution was preceded by a preparatory stage. In a certain way the Saturn and Sun evolutions were recapitulated. Now, after the reunion of Sun and Moon, during what we have termed the ebb-tide, two epochs may be distinguished one from the other. In the course of these, even physical condensation occurs to a certain degree. Therefore psycho-spiritual conditions of the Sun-Moon organism alternate with others of a more physical nature. In such physical epochs human beings and those of the lower kingdoms appear as though they were preparing, in stiff not yet self-reliant forms, the type of what they were to become in a more independent manner during the Earth period. We may therefore speak of two preparatory epochs in the Moon evolution, and of two others during the ebb-tide. In occult science such epochs may be termed cycles.(20) In that period which follows the two preparatory epochs, and precedes those of the ebb-tide—that is to say, during the time of the separation of the Moon—three epochs can again be distinguished. The middle period is the time when the Sons of Life reached the human level. It is preceded by a period in which all conditions lead up to that crowning event; and it is followed by one which may be called a time of adaptation and of perfecting the new creations. In this way the middle period of the Moon evolution is again divided into three epochs, which, with the two preparatory periods and the two during the ebb-tide make up seven Moon cycles, or rounds. It may therefore be said that the whole Moon evolution passes through seven cycles, or rounds. Between them are intervals of rest, which have been mentioned repeatedly in the above description. Yet we can approach a true concept of these facts only if we do not think of the changes between the periods of activity and those of rest, as sudden ones. For instance, the Sun-beings little by little withdraw their activity from the Moon. A time begins for them which, viewed from without, appears to be their resting period, whereas in reality an intense, independent activity still continues on the Moon itself. Thus the active period of one kind of being repeatedly extends into the resting time of another. If we take account of such things we may speak of a rhythmic ascent and descent of forces in cycles. Indeed, similar divisions are to be recognized even within the seven Moon cycles mentioned. We may then call the whole Moon evolution one great cycle, and the seven divisions, or rounds, within it, “small” cycles; and again, the separate parts of these, “smaller” cycles. This systematic arrangement into seven times seven divisions is also noticeable in the Sun evolution and can be indicated during the Saturn period. Yet we must bear in mind that the boundaries between the divisions are somewhat obliterated even in the Sun, and still more so in Saturn. These boundaries become more and more defined the nearer evolution advances to the Earth period.