We may note that the idea of overcoming death can be traced back for some three thousand years or so. Hermes, the "Thrice Greatest One," taught that only "by error" had death become installed upon our planet, and that nothing in the world could ever be lost. "Death does not exist; the word 'mortal' is void of meaning, and is merely the word 'immortal' without its first syllable." He taught further that the world was the second God, immortal and alive, and that no part of it could ever die; that "the eternal" and "the immortal" must not be confused, for "the eternal" was God Uncreate, while the world which He had created and made in His own image was endowed with His immortality. Hermes also suggested that it was only necessary to send our bodily sensations to sleep in order to awake in God and rejoice in immortality! There was a close relationship between Hermes, the Essenes of Egypt, and St. John, the author of _Revelation_. Indeed, if we search carefully, we find that the Gnostics of every school believed in the possibility of banishing death from the earth. "Whosoever drinketh of the water that I shall give him shall never thirst; but the water that I shall give him shall be in him a well of water springing up into everlasting life." (St. John iv. 14). And what superiority over the claims of Mrs. Eddy is shown by Hermes, when he declares that in order to reach the spiritual worlds we only need to free ourselves from sensation! Unsuspected sources of inspiration, as yet unutilised, abound in the writings of the Pythagoreans, the Essenes, and even the Neo-Platonists. The creators of future religions are likely to draw much water from these wells, but Christian Science can lay claim to be the first to have made use of the mysticism of the past in a practical fashion, so that its adherents rejoice in the prospect of endless life, even as did the visionaries of former ages. When one examines the doctrine closely, its lack of originality becomes apparent. The idea that matter does not exist has had numerous protagonists in the realms of philosophy, and is ardently defended by Berkeley. In the dialogues of Hylas and Philonous, the latter speaks of the "absolute impossibility" of matter, which has no existence apart from spirit. But Mrs. Eddy succeeded in giving this purely metaphysical conception a concrete value in the affairs of every-day life. She opened the first _School of Christian Science Mind-healing_ in 1867 with one student; towards the end of the century her followers numbered close on a hundred thousand; while to-day the "Mother Church" can boast over a million adherents, to say nothing of its financial resources.