Obsession is believed by many Spiritists to be a major danger to unprepared and untrained mediums.
However, the 19th century Spiritualist author Paschal Beverly Randolph also recognized the dangers of obsession to mediums, and claimed to have been harmed by evil spirits during his own career as a Spiritualist lecturer and trance medium.
[3] Technically, "obsession" is any unwanted influence of a spirit, when it alters or suppresses the normal manifestation of the personality of the subject.
The obsessed may be led to behave abnormally without apparent reason and will not be able to explain their deeds or crimes.
The cure is a lengthy process that involves all of the above treatments, but also: In overall, the solution to problem of obsession is threefold: Although obsession is usually understood as an undesirable "side effect" of practicing spiritism, some proponents accept that some cases are intended to be "show cases" to attract the public interest towards spiritism.