Faithfuls gather during the Holy Mass at Daejeon World Cup stadium in Daejeon

Faithfuls gather during the Holy Mass at Daejeon World Cup stadium in Daejeon August 15, 2014. Pope Francis on Friday commemorated the more than 300 people killed in a ferry disaster in April, and called on South Koreans, among Asia’s richest people, to beware of the spiritual “cancer” that often accompanies affluent societies. REUTERS/Lee Jin-man/Pool (SOUTH KOREA – Tags: RELIGION POLITICS)