In Vodou, Dan Petro is the loa who protects farmers; he is the father of Ti-Jean Petro. vodoo, vodun, or vodoun may refer to any of West African vodun, a west African religion Haitian vodou, mostly derived The Loa (also Lwa or L'wha) are the spirits of the Vodou religion practiced in Haiti, and other parts of the world In Haitian Vodou, Ti-Jean Petro is a Snake - Loa and son of Dan Petro.