Mambo T and Sosyete Fos Fe Yo We welcome you to a ceremony (sevis) in honor of the spirits of Haitian Vodou (the Lwa). This will be a formal Vodou ceremony marking the tenth anniversary of our Vodou house, and we are opening it to Paganicon to celebrate with us! Respectful non-participating observers and participating guests are welcome. Participants will be expected to dance and are required (mandatory) to wear all white, modest clothing (no bare shoulders for any gender). Women need a white kerchief, scarf, or hat to cover their heads.