It will, of course, be urged that the crimes here described were those of a criminal lunatic and not to be attributed to any occult cause; the answer to this is that Gilles was not an isolated unit, but one of a group of occultists who cannot all have been mad. Moreover, it was only after his invocation of the Evil One that he developed these monstrous proclivities. So also his eighteenth-century replica, the Marquis de Sade, combined with his abominations an impassioned hatred of the Christian religion.

What is the explanation of this craze for magic in Western Europe? Deschamps points to the Cabala, "that science of demoniacal arts, of which the Jews were the initiators," and undoubtedly in any comprehensive review of the question the influence of the Jewish Cabalists cannot be ignored. In Spain, Portugal, Provence, and Italy the Jews by the fifteenth century had become a power; as early as 1450 they had penetrated into the intellectual circles of Florence, and it was also in Italy that, a century later, the modern Cabalistic school was inaugurated by Isaac Luria (1533-72), whose doctrines were organized into a practical system by the Hasidim of Eastern Europe for the writing of amulets, the conjuration of devils, mystical jugglery with numbers and letters, etc.[224] Italy in the fifteenth century was thus a centre from which Cabalistic influences radiated, and it may be that the Italians who indoctrinated Gilles de Rais had drawn their inspiration from this source. Indeed Eliphas Lévi, who certainly cannot be accused of "Anti-Semitism," declares that "the Jews, the most faithful trustees of the secret of the Cabala, were almost always the reat masters of magic in the Middle Ages,"[225] and suggests that Gilles de Rais took his monstrous recipes for using the blood of murdered children "from some of those old Hebrew grimoires (books on magic), which, if they had been known, would have sufficed to hold up the Jews to the execration of the whole earth."[226] Voltaire, in his Henriade, likewise attributes the magical blood-rites practised in the sixteenth century to Jewish inspiration:

Dans l'ombre de la nuit, sous une voûte obscure,
Le silence conduit leui assemblée impure.
A la pàle lueur d'un magique flambeau
S'élève un vil autel dressé sur un tombeau.
C'est là que des deux rois on plaça les images,
Objets de leur terreur, objets de leurs outrages.
Leurs sacrilèges mains out mêlé sur l'autel
A des noms infernaux le nom de l'Éternel.
Sur ces murs ténébreux des lances sont rangées,
Dans des vases de sang leurs pointes sont plongées;
Appareil menaçant de leur mystère affreux.
Le prêtre de ce temple est un de ces Hébreux
Qui, proscrits sur la terre et citoyens du monde,
Portent de mers en mers leur misère profonde,
Et, d'un antique ramas de superstitions,
Out rempli dès longtemps toutes les nations, etc.

Voltaire adds in a footnote: "It was ordinarily Jews that were made use of for magical operations. This ancient superstition comes from the secrets of the Cabala, of which the Jews called themselves the sole depositaries. Catherine de Medicis, the Maréchal d'Ancre, and many others employed Jews for these spells."

This charge of black magic recurs all through the history of Europe from the earliest times. The Jews are accused of poisoning wells, of practising ritual murder, of using stolen church property for purposes of desecration, etc. No doubt there enters into all this a great amount of exaggeration, inspired by popular prejudice and mediæval superstition. Yet, whilst condeming the persecution to which the Jews were subjected on this account, it must be admitted that they laid themselves open to suspicion by their real addiction to magical arts. If ignorant superstition is found on the side of the persecutors, still more amazing superstition is found on the side of the persecuted. Demonology in Europe was in fact essentially a Jewish science, for although a belief in evil spirits existed from the earliest times and has always continued to exist amongst primitive races, and also amongst the ignorant classes in civilized countries, it was mainly through the Jews that these dark superstitions were imported to the West, where they persisted not merely amongst the lower strata of the Jewish population, but formed an essential part of Jewish tradition. Thus the Talmud says:

If the eye could perceive the demons that people the universe, existence would be impossible. The demons are more numerous than we are: they surround us on all sides like trenches dug round vineyards. Every one of us has a thousand on his left hand and ten thousand on his right. The discomfort endured by those who attend rabbinical conferences ... comes from the demons mingling with men in these circumstances. Besides, the fatigue one feels in one's knees in walking comes from the demons that one knocks up against at every step. If the clothing of the Rabbis wears out so quickly, it is again because the demons rub up against them. Whoever wants to convince himself of their presence has only to surround his bed with sifted cinders and the next morning he will see the imprints of cocks' feet.[227]

The same treatise goes on to give directions for seeing demons by burning portions of a black cat and placing the ashes in one's eye: "then at once one perceives the demons." The Talmud also explains that devils particularly inhabit the waterspouts on houses and are fond of drinking out of water-jugs, therefore it is advisable to pour a little water out of a jug before drinking, so as to get rid of the unclean part.[228]

These ideas received a fresh impetus from the publication of the Zohar, which, a Jewish writer tells us, "from the fourteenth century held almost unbroken sway over the minds of the majority of the Jews. In it the Talmudic legends concerning the existence and activity of the shedhim (demons) are repeated and amplified, and a hierarchy of demons was established corresponding to the heavenly hierarchy.... Manasseh [ben Israel]'s Nishmat Hayim is full of information concerning belief in demons.... Even the scholarly and learned Rabbis of the seventeenth century clung to the belief."[229]

Here, then, it is not a case of ignorant peasants evolving fantastic visions from their own scared imaginations, but of the Rabbis, the acknowledged leaders of a race claiming civilized traditions and a high order of intelligence, deliberately inculcating in their disciples the perpetual fear of demoniacal influences. How much of this fear communicated itself to the Gentile population? It is at any rate a curious coincidence to notice the resemblances between so-called popular superstitions and the writings of the Rabbis. For example, the vile confessions made both by Scotch and French peasant women accused of witchcraft concerning the nocturnal visits paid them by male devils[230] find an exact counterpart in passages of the Cabala, where it is said that "the demons are both male and female, and they also endeavour to consort with human beings--a conception from which arises the belief in incubi and succubæ."[231] Thus, on Jewish authority, we learn the Judaic origin of this strange delusion.

It is clearly to the same source that we may trace the magical formulæ for the healing of diseases current at the same period. From the earliest times the Jews had specialized in medicine, and many royal personages insisted on employing Jewish doctors,[232] some of whom may have acquired medical knowledge of a high order. The Jewish writer Margoliouth dwells on this fact with some complacency, and goes on to contrast the scientific methods of the Hebrew doctors with the quackeries of the monks: