The peristyle, peristil in Haitian Creole, is the roofed ceremonial space of a Haitian Vodou temple, the ounfo, and its whole design is organised around a single central object.
The centre post
The peristyle is typically an open-sided hall centred on the poto mitan, the central post, which is understood as the axis down which the spirits, the lwa, descend into the ceremony and the point around which the drumming, singing and dancing turn. The floor around it may be marked with the veve, the ground drawings that call particular lwa, and the space holds the drums whose rhythms summon the spirits and the altars of the ounfo. The ceremony is conducted here by the priest or priestess, the oungan or manbo, who serves the lwa on behalf of the community.
The working heart of the temple
The peristyle is where Vodou is practised as public communal religion, as against the private altar work of the priest, and the events held in it, the feasts of the lwa, the initiations, the dances at which the spirits mount their devotees, are the visible life of the tradition. The Haitian temple thus centres its architecture on the poto mitan in the same way its theology centres on the descent of the lwa, and the post is at once the structural support of the roof and the road by which the spirits arrive, a coincidence of the practical and the sacred that is characteristic of the religion.