Christian initiation is accomplished by three sacraments together: Baptism which is the beginning of new life; Confirmation which is its strengthening; and the Eucharist which nourishes the disciple with Christ's Body and Blood for his transformation in Christ." CCC 1275
The Sacrament of Baptism is the initial sacrament of faith and through the waters of Baptism we enter anew kind of life, the life of the spirit.