An experiment was in progress to ascertain if ordinary culture had attained a stage at which it would appreciate a flood of new thought relating to a… - Alfred Percy Sinnett

People in the present day will be slow to believe that any knowledge worth considering can be found outside the bright focus of Western culture. Modern science has accomplished grand results by the open method of investigation, and is very impatient of the theory that persons who ever attained to real knowledge, either in sciences or metaphysics, could have been content to hide their light under a bushel. So the tendency has been to conceive that occult philosophers of old- Egyptian priests, Chaldean Magi, Essenes, Gnostics, theurgic Neo-Platonists, and the rest-who kept their knowledge secret, must have adopted that policy to conceal the fact that they knew very little. Mystery can only have been loved by charlatans who wished to mystify. The conclusion is pardonable from the modern point of view, but it has given rise to an impression in the popular mind that the ancient mystics have actually been turned inside out, and found to know very little. This impression is absolutely erroneous. (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)

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)