Pope Leo XIV , carrying a tall, lit candle through a darkened and silent St. Peter’s Basilica, ushered in Christianity’s most joyous celebration with his first Easter vigil service as pontiff Saturday night, urging that Easter would bring harmony and peace to a world torn by wars. Easter for Christians commemorates Christ’s triumph over death with his resurrection following his crucifixion. Lighting the candle before he entered the basilica, the pope intoned: “The light of Christ who rises in