Mesmeriana Therapeutics takes ailment to its highest point, the crisis and the spasm, in group sessions that will become a real fashion among the members of the high society of the pre-revolutionary Paris. The discovery of posthipnoticos and hypnotic States by disciples of Mesmer gives rise to an authentic mesmeromania, germ of current Spiritism, which makes magnetic treatment in a mere spectacle. The Academy of science of Paris named a Commission of inquiry which shows the absence of animal magnetism, thus invalidating the explanatory theory of mesmeriana Therapeutics, while acknowledging the existence of inexplicable cures, but instead of trying to explain this enigmatic contact between physician and patient, and while none of the methods of the medicine of the moment is able to offer comparable results to those obtained by Mesmer, for the sole purpose of the magnetism that today we call suggestion, is limited to proclaim the victory of science and thus delay the discovery of the phenomena suggestive in more than one century. Mesmer, in search of the universal panacea, accidentally found something more important, but was unable to see or Intuit, lacked the crucial idea of suggestion, despite using it constantly through procedures rudimentary and twisted that earned him derision and contempt of a purely mechanistic science.