Baptism and the "Newness" of Christian Life

10. It is no exaggeration to say that the entire existence of the lay faithful has as its purpose to lead a person to a knowledge of the radical newness of the Christian life that comes from Baptism, the sacrament of faith, so that this knowledge can help that person live the responsibilities which arise from that vocation received from God. In arriving at a basic description of the lay faithful we now more explicitly and directly consider among others the following three fundamental aspects: Baptism regenerates us in the life ot the Son of God; unites us to Christ and to his Body, the Church; and anoints us in the Holy Spirit, making us spiritual temples.