St. Sebastian Catholic Church in Dearborn Heights used a special monstrance for Sunday's Corpus Christi Mass.The church, 3965 Merrick St., celebrated the Solemnity of the Most Holy Body and Blood of Christ, or Corpus Christi, with a monstrance gifted by St. Pope John Paul II.The Roman Catholic celebration of Corpus Christi recognizes the belief in the real presence of Jesus Christ in the Holy Eucharist.