Confirmation is a Sacrament in the Catholic Church in which the one who is confirmed (confirmandi) receives the gifts of the Holy Spirit through the imposition of hand and anointing with oils by the Bishop or Priest. It’s considered a sacrament of initiation which means that it brings you deeper into communion with the Church.
Growth is vital to human life; the body and mind must grow to stay alive. Catholics believe that the soul also needs to grow to maturity in the life of grace, just as the human body must grow through childhood, adolescence, and adulthood. Catholics believe the Sacrament of Confirmation is the supernatural equivalent of the growth process on the natural level. It builds on what was begun in Baptism and what was nourished in Holy Eucharist. It completes the process of initiation into the Christian community, and it matures the soul for the work ahead..
Now when the apostles at Jerusalem heard that Samaria had received the word of God, they sent to them Peter and John, who came down and prayed for them ythat they might receive the Holy Spirit.”Acts 8:14-17
"Commit your way to the LORD; trust in him and he will do this:"