We venture to say a few words in explanation of the plan of this work. Its object is not to force upon the public the personal views or theories of its author; nor has it the pretensions of a scientific work, which aims at creating a revolution in some department of thought. It is rather a brief summary of the religions, philosophies, and universal traditions of human kind, and the exegesis of the same, in the spirit of those secret doctrines, of which none — thanks to prejudice and bigotry — have reached Christendom in so unmutilated a form, as to secure it a fair judgment. Since the days of the unlucky mediaeval philosophers, the last to write upon these secret doctrines of which they were the depositories, few men have dared to brave persecution and prejudice by placing their knowledge upon record. And these few have never, as a rule, written for the public, but only for those of their own and succeeding times who possessed the key to their jargon. The multitude, not understanding them or their doctrines, have been accustomed to regard them en masse as either charlatans or dreamers. Hence the unmerited contempt into which the study of the noblest of sciences — that of the spiritual man — has gradually fallen.
Helena Petrovna Blavatsky