In CONFIRMATION the soul of a baptized Christian is imprinted with a permanent seal that can be received only once and marks this individual forever as a Christian. The gift of the Holy Spirit is the strength from above in which this individual puts the grace of his Baptism into practice through his life and acts as a “witness” for Christ.
It confers the gifts of the Holy Spirit (wisdom, understanding, knowledge, counsel, fortitude, piety, and fear of the Lord) upon the recipient, who must be a baptized person