In the recital of the miseries of the Middle Age, made by a master hand, by an illustrious historian, who bases his assertions on antique chronicles whose veracity cannot be questioned, we read the following: “Society was impressed with a profound sentiment of sadness, it was as though a pall of grief covered the generation; the whole world given over to plagues; the invasion by barbarians; horrible diseases; terrible famines decimating the masses by starvation; violent wind storms; greyish skies with foggy days; the darkness of night casting its shroud everywhere; a cry of lamentation ascends to Heaven through all this gruesome period. That sombre witness, our contemporary Glaber, fully indicates the position of society devoured by war, famine and the plague. It was thought that the order of seasons and the laws of the elements, that up to that period governed the world, had fallen back into the original chaos. It was thought that the end of the human race had arrived.”[65] When the epidemic of Demonomania attacked the earth, at the end of the fifteenth century, more than ten generations had undergone the depressive action of the superstitions and false ideas spread broadcast by religion. Heredity had prepared the earth, the human mind being in an absolute condition of receptivity for all pathological actions. The education of children was confined to teaching them foolish doctrines, diabolical legends, mysterious practices that weakened their judgments. With the progression, from childhood to majority, a vague sentiment of uneasiness was experienced with a constant preoccupation on the subject of conscience and sin. In full adult age, as we have observed, came religious monomania, with acute sexual excitement, and persistent erotic ideas. Arriving at this phase of the situation, some became theomaniacs, others demonomaniacs, saying they were possessed by sorcery, under the influence of genesic and other senses, with psychal hallucinations, and in some cases, psycho-sensorial illusions. These fictitious perception were produced either through the influence of the mind, assailed by supernatural conceptions, or by morbid impressions transmitted most often by the great sympathetic, or, finally, by an unknown action arising from the exterior.