Watch | Cuban leader Fidel Castro delivers emotional speech saying he would die soon.

Iconic Cuban leader Fidel Castro made a historic appearance on Tuesday to muse about death and provide encouragement to his followers, in a rare speech at the closing of a Communist Party congress in Havana. He spoke as the government announced that his brother Raul would retain the party's highest post. The decision along with Castro's speech together delivered a resounding message that the island's revolutionary generation will remain in control even as its members age and die. Castro, 89, is one of the most iconic world leaders.