Catechism in a Year
Monday, May 07, 2018
145. What does the Spirit do in the Church?
The Spirit builds, animates and sanctifies the Church. As the Spirit of Love, he restores to the baptized the divine likeness that was lost through sin and causes them to live in Christ the very life of the Holy Trinity. He sends them forth to bear witness to the Truth of Christ and he organizes them in their respective functions so that all might bear "the fruit of the Spirit" (Galatians 5:22).
Further reading: CCC 733-741, 747
146. How do Christ and his Spirit act in the hearts of the faithful?
Christ communicates his Spirit and the grace of God through the sacraments to all the members of the Church, who thus bear the fruits of the new life of the Spirit. The Holy Spirit is also the Master of prayer.
Further reading: CCC 738-741
These excerpts are from the Compendium of the CCC.