When Jesus ascended into heaven, He promised to send us another Advocate. That Advocate is the Holy Spirit, which descended on the disciples at Pentecost and is sealed in each one of us at our Confirmation. The Holy Spirit does not give us magical powers or compel us to act in certain ways against our will. However, the Spirit does give us gifts that we can accept and nurture as we try to become more like Christ.
When we receive the sacrament of Confirmation, each of us is blessed to receive the sanctifying gifts of the Holy Spirit: