WORCESTER-LENTEN MISSION: Our Lady of Czestochowa Parish, 34 Ward St., will hold a parish mission, March 21-23, led by Mario and Ania Casanova:Friday, March 21, 6:30 p.m. Mass, 7 p.m. Eucharistic healing service, “Freedom Through the Cross, Receiving Christ’s Sacrifice,” followed by confession; Saturday, March 22, 8 a.m. Mass, “Challenges and Trials: A Divine invitation to Conversion,” followed by confession; Sunday, March 23, all Masses (4 p.m. vigil, 8, 9:30 & 11:30 a.m.), A Lent of Hope: Clinging to God’s Promise.”