Jesus Christ founded a Church that inherited His doctrine, His law, His grace, and His Love: the Holy Spirit. The mystery of the Church was the culmination of Salvation history, of that mysterious Love of a lover that God had manifested towards humanity and His Chosen People.
The Compendium Of The Social Doctrine Of The Church explains that “Jesus’ followers are called to live like him and, after his Passover of death and resurrection, to live also in him and by him, thanks to the superabundant gift of the Holy Spirit, the Consoler, who internalizes Christ’s own style of life in human hearts” (29).
It has been the constant belief of the Church that God is Triune, a plurality of Persons. God is one and God is three.
The Mystical Vine, the Catholic Church is animated by a novel vital principle, which is its Soul, the Holy Spirit, who is the Grace that animates all the members of the Body of Christ.
The celebration of Pentecost reminds us that right now, here in the present, the Spirit actively and constantly seeks human hearts that thirst for divine love and a new way of life.