During the ceremony, the houngan or mambopriest or priestesssacrifices a sanctified chicken or other animal to the Loa. Participants then ask the spirits for advice or help with problems. More than half the requests are for health.
It is said that the Loa sometimes communicate prophecies, advice, or warnings while the believer is possessed. Other messages are sent through the priest or priestess, or sometimes come later in dreams.
These disembodied spirits are believed to become tired and worn downand rely on humans to "feed" them in periodic rituals, including sacrifices. "It's not the killing of the animals that matters," Corbett said. "It's the transfer of life energy back to the Loa."
Each of the spirits has a distinct identity. Some are loving and good, while others are capricious or demanding. Haitians believe that the Loa most often express their displeasure by making people sick.
In the West voodoo has been portrayed in zombie movies and popular books as dark and evil, a cult of devil worship dominated by black magic, human sacrifice, and pin-stuck voodoo dollsnone of which exist in the voodoo practices that originated in Benin.
In Haiti voodoo began as an underground activity. During the 1700s thousands of West African slaves were shipped to Haiti to work on French plantations.
The slaves were baptized as Roman Catholics upon their arrival in the West Indies. Their traditional African religious practices were viewed as a threat to the colonial system and were forbidden. Practitioners were imprisoned, whipped, or hung.
But the slaves continued to practice in secret while attending masses. What emerged was a religion that the colonialists thought was Catholicismbut they were outfoxed.
It was easy to meld the two faiths, because there are many similarities between Roman Catholicism and voodoo, Corbett said. Both venerate a supreme being and believe in the existence of invisible evil spirits or demons and in an afterlife.
Each religion also focuses its ceremonies around a center pointan altar in Catholicism, a pole or tree in voodoo. Their services include symbolic or actual rituals of sacrifice and consumption of flesh and blood, Corbett noted.
Many of the Loa resemble Christian saints, endowed with similar responsibilities or attributes. For example, Legba, an old man, is said to open the gates between Earth and the world of the Loa, much like St. Peter traditionally throws wide the gates to heaven.
But there are differences. Westerners tend to believe in free will and personal choice. Not so in voodoo.
"The Haitian people have a view of the world that is unimaginably different from ours," Corbett said. The Loa are believed to determine our lives to an astonishing degree, he explains, and they are always present in great numbers: There might be two people in a room, but there are also 20 Loa.
"Our view is dominated by physical, touchable reality. In Haiti the spirits are as real as your wife or your dog," Corbett said.
Like any other religious practice, voodoo brings great benefits, explains Warberg, the photographer. "Participation in voodoo ritual reaffirms one's relationships with ancestors, personal history, community relationshipsand the cosmos. Voodoo is a way of life," she said.
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