This means again, that our Globe is subject to seven periodical and _entire_ changes which go _pari passu_ with the Races. For the Secret Doctrine teaches that, during this Round, there must be seven terrestrial Pralayas, occasioned by the change in the inclination of the Earth’s axis. It is a Law which acts at its appointed time, and not at all blindly, as Science may think, but in strict accordance and harmony with Karmic Law. In Occultism this Inexorable Law is referred to as the “Great Adjuster.” Science confesses its ignorance of the cause producing climatic vicissitudes and also the changes in the axial direction, which are always followed by these vicissitudes. In fact, it does not seem at all sure of the axial changes. And being unable to account for them, it is prepared to deny the axial phenomena altogether, rather than admit the intelligent hand of the Karmic Law which alone can reasonably explain these sudden changes and their accompanying results. It has tried to account for them by various and more or less fantastic speculations; one of which, as de Boucheporn imagined, would be the sudden collision of our Earth with a Comet, thus causing all the geological revolutions. But we prefer holding to our Esoteric explanation, since Fohat is as good as any Comet, and, in addition, has universal Intelligence to guide him. Thus, since Vaivasvata Manu’s Humanity appeared on this Earth, there have already been four such axial disturbances. The old Continents—save the first—were sucked in by the oceans, other lands appeared, and huge mountain chains arose where there had been none before. The face of the Globe was completely changed each time; the “survival of the fittest” nations and races was secured through timely help; and the unfit ones—the failures—were disposed of by being swept off the Earth. Such sorting and shifting does not happen between sunset and sunrise, as one may think, but requires several thousands of years before the new house is set in order.