V. Yoga In East and West I
For thousands of years the higher wisdom was guarded in profound secrecy by Occult Brotherhoods. A man had to belong to one of these Brotherhoods before he could learn even the elements of occult science. To enter a Brotherhood he had to pass certain tests and swear not to make wrong use of the truths revealed to him. But the conditions of civilisation, and particularly of the human intellect, have entirely changed since the sixteenth century and above all in the last hundred years under the influence of scientific discoveries. As the result of science, a certain number of truths pertaining to Nature and the world of sense—which in olden times were known only to Initiates—have become public property. Knowledge possessed by science today was once in the keeping of the Mysteries. The Initiates have always known that which all men were destined, in time, to know. That is why the Initiates have been called prophets.