This is a queer book. It is a marriage of the Ancient Occult Teachings to the latest and most advanced conceptions of Modern Science--an odd union, for the parties thereto are of entirely different temperaments. The marriage might be expected to result disastrously, were it not for the fact that a connecting link has been found that gives them a bond of common interest. No two people may truly love each other, unless they also love something in common--the more they love in common, the greater will be their love for each other. And, let us trust that this will prove true in this marriage of Occultism and Science, celebrated in this book. - William Walker Atkinson