Demon
The contemporary Roman Catholic Church unequivocally teaches that angels and demons are real beings rather than just symbolic devices. The Catholic Church has a cadre of officially sanctioned exorcists which perform many exorcisms each year. The exorcists of the Catholic Church teach that demons attack humans continually but that afflicted persons can be effectively healed and protected either by the formal rite of exorcism, authorized to be performed only by bishops and those they designate, or by prayers of deliverance, which any Christian can offer for themselves or others.
Lewis Ashmore
Ashmore was a noted exorcist having performed hundreds of exorcisms since the 1950s. "For decades Rev. Lewis Ashmore cast out devils during tent revivals in the Central Valley. People foamed at the mouth, talked back to him in a strange voice and writhed uncontrollably on the ground." Aged 75, two years before he died, Ashmore concluded that demonic possession could be explained in the 21st century by modern medicine. "Back in Christ’s day, these mental conditions weren’t yet diagnosed,” he said. “All exorcisms can be explained by psychology and science."