+220. Delusions.+ Of popular delusions one of the most striking and recurrent examples is the belief that new and despised religious sects, which are forced to meet in private, practice obscene and abominable orgies. The early Christians were accused of such rites, and they charged dissenting sects with the same.[461] The Manichaeans, Waldenses, Huguenots, Puritans, Luciferans, Brothers of the Free Spirit, and so on through the whole list of heretical sects, have been so charged. Lea, in his History of the Inquisition, mentions over a dozen cases of such charges, some of which were true. Nowadays the same assertions are made against freemasons by Roman Catholics.[462] Jews are believed by the peasants of eastern Europe to practice abominable rites in secret. The idea that secret sects use the blood of people not of their sect, especially of babies, in base rites is only a variant of the broad idea about secret rites. It is sometimes said that the charges were invented to make sects unpopular, but it is more probable that they arose from the secrecy of the meetings only. Christians are so charged now in China.[463] The story of the discovery of such misbehavior always contains the same explanation--a husband followed his wife to the meeting and saw the proceedings.[464] +221. Manias need suggestion.+ Manias and delusions are like fashions and fads in that they always seem to need a suggestion from some outside source, and often it is impossible to find such a source. A strong popular belief, like the belief in Satan and demons, furnishes a ground for a general disposition to hold some other people responsible for all the ills which befall one's self. Then the disposition to act cruelly against the suspected person arises to a mental disease, and by cooperation of others under the same aberration makes a mania.[465] The explanation lies in autosuggestion or fixed ideas with the development loosely ranged under hysteria, which is the contagious form of nervous affection. The term "epidemic" can be applied only figuratively. "Mental disease occurs only on the ground of a specific constitutional and generally hereditary predisposition. It cannot therefore be spread epidemically, any more than diabetes or gout."[466] The epidemic element is due to hysterical imitation. In like manner, epidemics or manias of suicide occur by imitation, e.g. amongst the Circumcellions, a subdivision of the Donatists, in Africa, in the middle of the fourth century A.D.[467] Cognate with this was the mania for martyrdom which it required all the authority of the church to restrain.[468] Josephus[469] says of the Galileans, followers of Judas of Galilee, that they were famous for their indifference to death. Convents were often seats of frightful epidemics of hysteria. The accepted religious notions furnished a fruitful soil for it. To be possessed by devils was a distinction, and vanity was drawn into play.[470] Autosuggestion was