Seminarists, one of them carrying a fan with an image of Pope Francis, rehearse for next Sunday's public...
Seminarists, one of them carrying a fan with an image of Pope Francis and a message reading "Welcome to Cuba", rehearse for next Sunday's public Mass, celebrated by Pope Francis, at the Revolution Square, in Havana, September 17, 2015. Pope Francis is due for a three-night visit to Cuba, starting on Saturday. Catholicism is flourishing again in the former Spanish colony. As the church is gradually expanding its role and influence it still faces numerous challenges, notably low attendance, a lack of interest among youth and competition from Afro-Cuban religions that accept widely varying degrees of Catholic dogma. REUTERS/Alexandre Meneghini