Demonic possession

 is where individuals are supposed to be possessed by malevolent beings, commonly referred to as demons or devils.

Quotes

 * If it pleases you, my god, allow me to soothe your angry heart, so that your spirit will be assuaged. May the mackim demon that perpetrates evil be ripped apart, so that he will flee my body. May the  demon be extirpated from my limbs, so that my dark days will become bright. I cannot bear your heavy punishment any longer; declare that "It is over"! May I, the humble servant, not be destroyed; declare that "It is over"!
 * Kug-Nanna to Ninshubur, in Letter from Kug-Nanna to Ninshubur,, at.