For the benefit of those who may not have read, or, if they have, may not have clearly understood, in Theosophical writings, the doctrine of the septenary Chains of Worlds in the Solar Cosmos, the teaching is briefly as follows.

1. Everything in the metaphysical as in the physical Universe is septenary. Hence every sidereal body, every planet, whether visible or invisible, is credited with six companion Globes. The evolution of life proceeds on these seven Globes or bodies, from the First to the Seventh, in Seven Rounds or Seven Cycles.

The Secret Doctrine, Vol. 1 of 4 — Part 143

2. These Globes are formed by a process which the Occultists call the “rebirth of Planetary Chains (or Rings).” When the Seventh and last Round of one of such Rings has been entered upon, the highest or first Globe, A, followed by all the others down to the last, instead of entering upon a certain time of rest—or “Obscuration,” as in the previous Rounds—begins to die out. The Planetary Dissolution (Pralaya) is at hand, and its hour has struck; each Globe has to transfer its life and energy to another planet.(276)

The Secret Doctrine, Vol. 1 of 4 — Part 143

3. Our Earth, as the visible representative of its invisible superior fellow‐globes, its “Lords” or “Principles,” has to live, as have the others, through seven Rounds. During the first three, it forms and consolidates; during the fourth, it settles and hardens; during the last three, it gradually returns to its first ethereal form: it is spiritualized, so to say.

The Secret Doctrine, Vol. 1 of 4 — Part 143

4. Its Humanity develops fully only in the Fourth—our present Round. Up to this Fourth Life‐Cycle, it is referred to as “Humanity” only for lack of a more appropriate term. Like the grub which becomes chrysalis and butterfly, Man, or rather that which becomes Man, passes through all the forms and kingdoms during the First Round, and through all the human shapes during the two following Rounds. Arrived on our Earth at the commencement of the Fourth, in the present series of Life‐Cycles and Races, Man is the first form that appears thereon, being preceded only by the mineral and vegetable kingdoms—even the latter having to _develop and continue_ its further evolution _through man_. This will be explained in Volume II. During the three Rounds to come, Humanity, like the Globe on which it lives, will be ever tending to reässume its primeval form, that of a Dhyân Chohanic Host. Man tends to become _a_ God and then—_God_, like every other Atom in the Universe.