Vodou Possession Is Not Considered a Horror-Movie Accident
Western horror has not been kind to Vodou.
The popular version involves dolls, needles, curses, zombies and somebody realizing the vacation to Haiti was poorly planned.
Actual Haitian Vodou is a religion.
Its practitioners serve spiritual beings known as lwa, and ceremonies can involve music, offerings, dancing and spirit possession.
Possession is not necessarily interpreted as an invading evil force.
It can be the desired arrival of a lwa.
Smithsonian reporting on Haitian Vodou describes spirits being invoked during ritual and possessing worshippers, while practitioners themselves often call the religion sevis lwa, "service to the spirits."
Anthropological descriptions similarly place possession at the center of ritual religious experience rather than treating it as supernatural contamination.
Vodou developed in Haiti from African religious traditions under colonial slavery while interacting with Catholic imagery and practice. It survived persecution, caricature and an impressive quantity of terrible cinema.
Its spirits can be protective, demanding, humorous, frightening or unpredictable.
In that sense, the worldview is less interested in dividing existence neatly into "normal people" and "evil demons" than many outsiders expect.
The spiritual world has personalities.
Relationships.
Obligations.
Politics.
Essentially bureaucracy, but with drums.
The horror version stripped away the religion and kept the supernatural imagery.
Predictably, the supernatural imagery sold better.