Not all of mankind, however, entered this chain together. When the lunar chain came to its end the humanity upon it stood at various levels. Not Adeptship, but what is now for us the fourth step on the Path, was the goal appointed for that chain. Those who had attained it (commonly called in Theosophical literature the Lords of the Moon) had, as is usual, seven choices before them as to the way in which they would serve. Only one of those choices brought them, or rather a few of them, over into this Earth-chain to act as guides and teachers to the earlier races. A considerable proportion—a vast proportion, indeed—of the Moon-men had not attained that level, and consequently had to reappear in this Earth-chain as humanity. Besides this, a great mass of the animal kingdom of the Moon-chain was surging up to the level of the individualization, and some of its members had already reached it, while many others had not. These latter needed further animal incarnations upon the Earth-chain, and for the moment may be put aside.
There were many classes even among the humanity, and the manner in which these distributed themselves over the Earth-chain needs some explanation. It is the general rule that those who have attained the highest possible in any chain on any globe, in any root-race, are not born into the beginning of the next chain, globe or race, respectively. The earlier stages are always for the backward entities, and only when they have already passed through a good deal of evolution and are beginning to approach the level of those others who had done better, do the latter descend into incarnation and join them once more. That is to say, almost the earlier half of any period of evolution, whether it be a race, a globe or a chain, seems to be devoted to bringing the backward people up to nearly the level of those who have got on better; then these latter also (who, in the meantime, have been resting in great enjoyment in the mental world) descend into incarnation along with the others, and they press on together until the end of the period.
Thus the first of the egos from the Moon who entered the Earth-chain were by no means the most advanced. Indeed they may be described as the least advanced of those who had succeeded in attaining humanity—the animal-men. Coming as they did into a chain of new globes, freshly aggregated, they had to establish the forms in all the different kingdoms of Nature. This needs to be done at the beginning of the first round in a new chain, but never after that; for though the life-wave is centred only upon one of the seven globes of a chain at any given time, yet life has not entirely departed from the other globes. At the present moment, for example, the life-wave of our chain is centred on this Earth, but on the other two physical globes of our chain, Mars and Mercury, life still exists. There is still a population, human, animal and vegetable, and consequently when the life-wave goes round again to either of those planets there will be no necessity for the creation of new forms. The old types are already there, and all that will happen will be a sudden marvellous fecundity, so that the various kingdoms will quickly increase and multiply, and make a rapidly increasing population instead of a stationary one.
It was, then, the animal-men, the lowest class of human beings of the Moon-chain, who established the forms in the first round of the Earth-chain. Pressing closely after them were the highest of the lunar animal kingdom, who were soon ready to occupy the forms which had just been made. In the second journey round the seven globes of the Earth-chain, the animal-men who had been the most backward of the lunar humanity were leaders of this terrene humanity, the highest of the moon-animals making its less developed grades. The same thing went on in the third round of the Earth-chain, more and more of the lunar animals attaining individualization and joining the human rank, until in the middle of that round on this very globe D which we call the Earth, a higher class of human beings—the Second Order of Moon-men—descended into incarnation and at once took the lead.
When we come to the fourth, our present round, we find the First Order of the Moon-men pouring in upon us—all the highest and the best of the lunar humanity who had only just fallen short of success. Some of those who had already, even on the Moon, entered upon the Path soon attained its end, became Adepts and passed away from the Earth. Some few others who had not been quite so far advanced have attained Adeptship only comparatively recently—that is, within the last few thousand years, and these are the Adepts of the present day. We, who find ourselves in the higher races of humanity now, were several stages behind Them, but the opportunity lies before us of following in Their steps if we will.
The evolution of which we have been speaking is that of the Ego himself, of what might be called the soul of man; but at the same time there has been also an evolution to the body. The forms built in the first round were very different from any of which we know anything now. Properly speaking, those which were made on our physical earth can scarcely be called forms at all, for they were constructed of etheric matter only, and resembled vague, drifting and almost shapeless clouds. In the second round they were definitely physical, but still shapeless and light enough to float about in currents of wind.
Only in the third round did they begin to bear any kind of resemblance to man as we know him today. The very methods of reproduction of those primitive forms differed from those of humanity today, and far more resembled those which we now find only in very much lower types of life. Man in those early days was androgynous, and a definite separation into sexes took place only about the middle of the third round. From that time onward until now the shape of man has been steadily evolving along definitely human lines, becoming smaller and more compact than it was, learning to stand upright instead of stooping and crawling, and generally differentiating itself from the animal forms out of which it had been evolved.
One curious break in the regularity of this evolution deserves mention. On this globe, in this fourth round, there was a departure from the straightforward scheme of evolution. This being the middle globe of a middle round, the midmost point of evolution upon it marked the last moment at which it was possible for members of what had been the lunar animal kingdom to attain individualization. Consequently a sort of strong effort was made—a special scheme was arranged to give a final chance to as many as possible. The conditions of the first and second rounds were specially reproduced in place of the first and second races—conditions of which in the earlier rounds these backward egos had not been able fully to take advantage. Now, with the additional evolution, which they had undergone during the third round, some of them were able to take such advantage, and so they rushed in at the very last moment before the door was shut, and became just human. Naturally they will not reach any high level of human development, but at least when they try again in some future chain it will be some advantage to them to have had even this slight experience of human life.
Our terrestrial evolution received a most valuable stimulus from the assistance given to us by our sister globe, Venus. Venus is at present in the fifth incarnation of its chain, and in the seventh round of that incarnation, so that its inhabitants are a whole chain-period and a half in front of us in evolution. Since, therefore, its people are so much more developed than ours, it was thought desirable that certain Adepts from the Venus evolution should be transferred to our Earth in order to assist in the specially busy time just before the closing of the door, in the middle of the fourth root-race.
These august Beings have been called the Lords of the Flame and the Children of the Fire-mist, and They have produced a wonderful effect upon our evolution. The intellect of which we are so proud is almost entirely due to Their presence, for in the natural course of events the next round, the fifth, should be that of intellectual advancement, and in this our present fourth round we should be devoting ourselves chiefly to the cultivation of the emotions. We are therefore in reality a long way in advance of the programme marked out for us; and such advance is entirely due to the assistance given by these great Lords of the Flame. Most of Them stayed with us only through that critical period of our history; a few still remain to hold the highest offices of the Great White Brotherhood until the time when men of our own evolution shall have risen to such a height as to be capable of relieving their august Visitors.