Katekismo Corner: On the Mystagogy of Baptism: No. 31
On the Mystagogy of Baptism Sacraments are signs instituted by Christ to bestow Grace. Regardless of the merits and disposition of the minister or the recipient, but because of God’s goodness and generosity, the Sacraments, as instruments of God, effect Grace. This is the principle “ ex opere operato ”. That is why in Infant Baptism, even if the faith of the child is not ascertained, and regardless of whether the baby is awake or asleep, calm or crying, the efficacy of the Sacrament of Baptism is certain: the child is cleansed from original sin, born in the Holy Spirit, given a new life in Christ, made a child of God and heir to the Kingdom of Heaven, and incorporated into the Church which is the Mystical Body of Christ. By Baptism too, the recipient is imprinted with an indelible spiritual mark or character, that seals her/his belonging to Christ that cannot be removed nor erased even by sin. The essential Sign of Baptism in the Roman Catholic Church is water poured on the hea...