: the character of being in conformity with a Catholic church
merriam-webster.com/dictionary/catholicity
Catechism of the Catholic Church
**III. ****THE CHURCH IS THE TEMPLE OF THE HOLY SPIRIT **
797 "What the soul is to the human body, the Holy Spirit is to the Body of Christ, which is the Church."243 "To this Spirit of Christ, as an invisible principle, is to be ascribed the fact that all the parts of the body are joined one with the other and with their exalted head; for the whole Spirit of Christ is in the head, the whole Spirit is in the body, and the whole Spirit is in each of the members."244 The Holy Spirit makes the Church “the temple of the living God”:245
Indeed, it is to the Church herself that the “Gift of God” has been entrusted. . . . In it is in her that communion with Christ has been deposited, that is to say: the Holy Spirit, the pledge of incorruptibility, the strengthening of our faith and the ladder of our ascent to God. . . . For where the Church is, there also is God’s Spirit; where God’s Spirit is, there is the Church and every grace.246
798 The Holy Spirit is "the principle of every vital and truly saving action in each part of the Body."247 He works in many ways to build up the whole Body in charity:248 by God’s Word “which is able to build you up”;249 by Baptism, through which he forms Christ’s Body;250 by the sacraments, which give growth and healing to Christ’s members; by “the grace of the apostles, which holds first place among his gifts”;251 by the virtues, which make us act according to what is good; finally, by the many special graces (called “charisms”), by which he makes the faithful "fit and ready to undertake various tasks and offices for the renewal and building up of the Church."252
scborromeo.org/ccc/p123a9p2.htm