It is said to have the power to heal, to bring good fortune and to punish, in return it wants tribute, song, dance, alcohol and the blood of sacrificed animals. Sixty million people around the world believe and practice voodoo. For them it is an established religion that predates Christianity. Its rituals include euphoria and spirit possession. To those on the outside voodoo is filled with dark secret and mystery and said to have powers to bring good fortune, to heal and punish enemies. But those who practice it say voodoo is the most misunderstood religion in the world.