People from the Mouride sect of Sufi Islam chant prayers in the village of Ndande, May 18, 2013. Every year, inhabitants of the village take part in a Sufi Muslim ceremony called Gamou-Ndande. The ceremony combines nights of praying and chanting as well as traditionally animist ceremonies. Picture taken May 18, 2013. REUTERS/Joe Penney (SENEGAL - Tags: RELIGION SOCIETY)