Pope Benedict XVI kisses a baby during his general audience in St. Peter's Square at the Vatican, Wednesday, Feb. 27, 2013. Pope Benedict XVI basked in an emotional sendoff Wednesday at his final general audience in St. Peter's Square, recalling moments of "joy and light" during his papacy but also times of great difficulty. (AP Photo/Gregorio Borgia)

Photo by: Gregorio Borgia

Pope Benedict XVI kisses a baby during his general audience in St. Peter's Square at the Vatican, Wednesday, Feb. 27, 2013. Pope Benedict XVI basked in an emotional sendoff Wednesday at his final general audience in St. Peter's Square, recalling moments of "joy and light" during his papacy but also times of great difficulty. (AP Photo/Gregorio Borgia)