When it is borne in mind that all forms which now people the Earth are so many variations on basic types originally thrown off by the Man of the Third and Fourth Round, such an evolutionist argument as that insisting on the “unity of structural plan” characterizing all vertebrates, loses its edge. The basic types referred to were very few in number in comparison with the multitude of organisms to which they ultimately gave rise; but a general unity of type has, nevertheless, been preserved throughout the ages. The economy of Nature does [pg 722] not sanction the coëxistence of several utterly opposed “ground plans” of organic evolution on one planet. Once, however, that the general drift of the Occult explanation is formulated, inference as to detail may well be left to the intuitive reader.
Similarly with the important question of the “rudimentary” organs discovered by Anatomists in the human organism. Doubtless this line of argument, when wielded by Darwin and Hæckel against their European adversaries, proved of great weight. Anthropologists, who ventured to dispute the derivation of man from an animal ancestry, were sorely puzzled how to deal with the presence of gill-clefts, with the “tail” problem, and so on. Here again Occultism comes to our assistance with the necessary data.
The fact is that, as previously stated, the human type is the repertory of all potential organic forms, and the central point from which these latter radiate. In this postulate we find a true “evolution” or “unfolding”—in a sense which cannot be said to belong to the mechanical theory of Natural Selection. Criticizing Darwin's inference from “rudiments,” an able writer remarks:
Why is it not just as probably a true hypothesis to suppose that man was first created with these rudimentary sketches in his organization, and that they became useful appendages in the lower animals into which man degenerated, as it is to suppose that these parts existed in full development, activity and practical use, in the lower animals out of whom man was generated?[1622]
Read for “into which man degenerated,” “the prototypes which man shed in the course of his astral developments,” and an aspect of the true Esoteric solution is before us. But a wider generalization is now to be formulated.
So far as our present Fourth Round terrestrial period is concerned, the mammalian fauna are alone to be regarded as traceable to prototypes shed by Man. The amphibia, birds, reptiles, fishes, etc., are the resultants of the Third Round, astral fossil forms stored up in the auric envelope of the Earth and projected into physical objectivity subsequent to the deposition of the first Laurentian rocks. “Evolution” has to deal with the progressive modifications, which Palæontology shows to have affected the lower animal and vegetable kingdoms in the course of geological time. It does not, and from the nature of things cannot, touch on the subject of the pre-physical types which served as the basis for future differentiation. Tabulate the general [pg 723] laws controlling the development of physical organisms it certainly may, and to a certain extent it has acquitted itself ably of the task.
To return to the immediate subject of discussion. The mammalia, whose first traces are discovered in the marsupials of the Triassic rocks of the Secondary period, were evolved from purely astral progenitors contemporary with the Second Race. They are thus post-human, and, consequently, it is easy to account for the general resemblance between their embryonic stages and those of Man, who necessarily embraces in himself and epitomizes in his development the features of the group he originated. This explanation disposes of a portion of the Darwinist brief.
But how to account for the presence of the gill-clefts in the human fœtus, which represent the stage through which the branchiæ of the fish are developed;[1623] for the pulsating vessel corresponding to the heart of the lower fishes, which constitutes the fœtal heart; for the entire analogy presented by the segmentation of the human ovum, the formation of the blastoderm, and the appearance of the “gastrula”stage, with corresponding stages in lower vertebrate life and even among the sponges; for the various types of lower animal life which the form of the future child shadows forth in the cycle of its growth?... How comes it to pass that stages in the life of fishes, whose ancestors swam [æons before the epoch of the First Root-Race] in the seas of the Silurian period, as well as stages in that of the later amphibian, reptilian fauna, are mirrored in the “epitomized history”of human fœtal development?
This plausible objection is met by the reply that the Third Round terrestrial animal forms were just as much referable to types thrown off by Third Round Man, as that new importation into our planet's area—the mammalian stock—is to the Fourth Round Humanity of the Second Root-Race. The process of human fœtal growth epitomizes not only the general characteristics of the Fourth, but of the Third Round terrestrial life. The diapason of type is run through in brief. Occultists are thus at no loss to “account for” the birth of children with an actual caudal appendage, or for the fact that the tail in the human fœtus is, at one period, double the length of the nascent legs. The potentiality of every organ useful to animal life is locked up in Man—the Microcosm of the Macrocosm—and abnormal conditions may not unfrequently result in the strange phenomena which Darwinists [pg 724] regard as “reversion to ancestral features.”[1624] Reversion, indeed, but scarcely in the sense contemplated by our present-day empiricists!