In regard to the complaint itself, that the teachings here reduced to an intelligible shape are incorrectly described by the name this book bears, I … - Alfred Percy Sinnett

Evolution of Man. For it must be realized that the evolution of man is a process still going on, and by no means yet complete. Darwinian writings have taught the modern world to regard the ape as an ancestor, but the simple conceit of Western speculation has rarely permitted European evolutionists to look in the other direction, and recognize the probability, that to our remote descendants we may be, as that unwelcome progenitor to us. Yet the two facts just declared hinge together. The higher evolution will be accomplished by our progress through the successive worlds of the system; and in higher forms we shall return to this earth again and again. But the avenues of thought through which we look forward to this prospect, are of almost inconceivable length.

There is a school of Philosophy still in existence of which modern culture has lost sight. Glimpses of it are discernible in the ancient philosophies with which all educated men are familiar, but these are hardly more intelligible than fragments of forgotten sculpture,-less so, for we comprehend the human form, and can give imaginary limbs to a torso; but we can give no imaginary meaning to the truth coming down to us from Plato or Pythagoras, pointing, for those who hold the clue to their significance, to the secret knowledge of the ancient world. Side lights, nevertheless, may enable us to decipher such language, and a very rich intellectual reward offers itself to persons who are willing to attempt the investigation. (Introduction)

The trials through which the neophyte has to pass are no fantastic mockeries, or mimicries of awful peril. Nor, do I take it, are they artificial barriers set up by the masters of occultism, to try the nerve of their pupils, as a riding-master might put up fences in his school. It is inherent in the nature of the science that has to be explored, that its revelations shall stagger the reason and try the most resolute courage. It is in his own interest that the candidate's character and fixity of purpose, and perhaps his physical and mental attributes, are tested and watched with infinite care and patience in the first instance, before he is allowed to take the final plunge into the sea of strange experiences through which he must swim with the strength of his own right arm, or perish. (Occultism and the Adepts I)