How is connected to Baptism?
In baptism we are made Christians, but we are not very strong until we receive the Holy Spirit in Confirmation. The Apostles were very fearful, hiding out, until the Holy Spirit came to them at Pentecost. Then they went out to preach the Gospel boldly, and suffered martyrdom bravely. Both Baptism and Confirmation imprint an indelible, spiritual mark, which is the sign of Jesus Christ (from the Catechism of the Catholic Church para 1304). Confirmation is like a completion of Baptism.
