In exchange for certain prayers, devotions or pilgrimages in special years, a Catholic can receive an indulgence, which reduces or cancels in purgatory.Penance. Sacrament administered by the priest to forgive sins and often required to perform some work. Second (CCC 980). «This sacrament of Penance is necessary for the salvation of those who have fallen after Baptism, just as Baptism is necessary for the salvation of those who have not yet been reborn», AbsolutionAbsolution is a traditional theological term for the forgiveness experienced in the sacrament. This happens at infant baptism. NECESSARY FOR SALVATIONBy Thomas WilliamsonHis theses on Catholic beliefs recorded in the Encyclopedia of the Catholic Faith.Catholic doctrine on salvation.The Catholic Church believes that salvation must be achieved through both faith and works, and that baptism is necessary For