The Sacrament of Baptism is defined in the Catechism of the Catholic Church as the basis of the whole Christian life, the gateway to life in the spirit and the door which give access to the other Sacraments.  Through Baptism we are freed from sin and reborn as sons of God; we become members of Christ, are incorporated into the Church and made sharers in her mission: "Baptism is the sacrament of regeneration through water in the word."