Sister Marie Simon-Pierre, right, and sister Tobiana give Pope Benedict XVI the glass reliquary containing the blood of late Pope John Paul II, in St. Peter's Square at the Vatican, Sunday, May 1, 2011. The Vatican has decreed that Sister Marie Simon-Pierre's inexplicable healing was the miracle needed to beatify John Paul, a process that will reach its culmination Sunday during a Mass in St. Peter's Square celebrated by Pope Benedict XVI. (AP Photo/Anja Niedringhaus)