“Thanks to the labors of a science which is comparatively recent, and more especially to the researches of the students of Hindu and Egyptian antiquities, it is very much easier today than it was not so long ago to discover the source, to unravel the underground network of that great mysterious river which since the beginning of history has been flowing beneath all religions, all faiths, and all philosophies: in a word, beneath all the visible and every-day manifestations of human thought.”

Maurice Maeterlinck, 1922