The music sometimes sounding like the exorcism of a multitude of demons, each one of whom was mightily resisting his expulsion.
The rite of exorcism is not quite as sensational as movies and legend might have one believe.
“Exorcists need to be certified to eliminate the practice of exorcism by untrained novices,” Taraborelli says.
early 15c., "a calling up or driving out of evil spirits," from Late Latin exorcismus, from Greek exorkismos, from exorkizein "exorcize, bind by oath," from ex "out of" (see ex-) + horkizein "cause to swear," from horkos "oath." Earlier in the same sense was exorcization (late 14c.).