"The aim of this work may be thus stated: to show that Nature is not “a fortuitous concurrence of atoms,” and to assign to man his rightful place in the scheme of the Universe; to rescue from degradation the archaic truths which are the basis of all religions ; and to uncover, to some extent, the fundamental unity from which they all spring; finally, to show that the occult side of Nature has never been approached by the Science of modern civilization. If this is in any degree accomplished, the writer is content. It is written in the service of humanity, and by humanity and the future generations it must be judged. Its author recognises no inferior court of appeal. Abuse she is accustomed to; calumny she is daily acquainted with; at slander she smiles in silent contempt."