CCC 688

The Church, a communion living in the faith of the apostles which she transmits, is the place where we know the Holy Spirit: - in the Scriptures he inspired; - in the Tradition, to which the Church Fathers are always timely witnesses; - in the Church's Magisterium, which he assists; - in the sacramental liturgy, through its words and symbols, in which the Holy Spirit puts us into communion with Christ; - in prayer, wherein he intercedes for us; - in the charisms and ministries by which the Church is built up; - in the signs of apostolic and missionary life; - in the witness of saints through whom he manifests his holiness and continues the work of salvation.