The elaboration of these paragraphs should be centered on the human being and his well-being, and is intended for all those interested in understanding the human condition from each of its components, especially those who deal with afflictions of any kind that harm health. Due to the ambiguity of the phenomenon of demonic possession, and to its diffuse diagnosis, the objective of this reading welcomes the principle of instruction, providing a content that will not be limited to a single intellectual perspective on possession, but will instead expose fairly each of the arguments that suggest an explanation to the phenomenon. From scientific conceptions specialized in mental and somatic health, such as psychology, psychiatry, neurology and other neurosciences, to hypotheses coming from disciplines such as demonology and parapsychology that suggest less conventional planes of knowledge; which would not be so valuable if the socio-cultural context in which the manifestation takes place were left out, as well as the historicity of the phenomenon through time.