The risen Christ unites his faithful people to himself in an intimate way by means of the Holy Spirit. In this way, those who believe in Christ, in as much as they are close to him especially in the Eucharist, are united among themselves in charity. They form one body, the Church, whose unity is experienced in the diversity of its members and its functions. (Compendium, n. 156)
Christ “is the Head of the body, the Church” (Colossians 1:18). The Church lives from him, in him and for him. Christ and the Church make up the “whole Christ” (Saint Augustine); “Head and members form, as it were, one and the same mystical person” (Saint Thomas Aquinas). (Compendium, n. 157)
“What the soul is to the human body, the Holy Spirit is to the members of Christ, that is, the body of Christ, which is the Church.” (Saint Augustine)
The Church is catholic, that is universal, insofar as Christ is present in her: “Where there is Christ Jesus, there is the Catholic Church” (Saint Ignatius of Antioch). The Church proclaims the fullness and the totality of the faith; she bears and administers the fullness of the means of salvation; she is sent out by Christ on a mission to the whole of the human race. (Compendium, n. 166).
Below you have an explanation taken from Sacrosanctum concilium, the 1st document of the Second Vatican Council on the different ways Jesus is truly present in His Church and which is worthwhile to read and take into account.
From the constitution on the sacred Liturgy of the Second Vatican Council
Christ is always present to his Church, especially in the actions of the liturgy. He is present in the sacrifice of the Mass, in the person of the minister (it is the same Christ who formerly offered himself on the cross that now offers by the ministry of priests) and most of all under the eucharistic species. He is present in the sacraments by his power, in such a way that when someone baptizes, Christ himself baptizes. He is present in his word, for it is he himself who speaks when the holy Scriptures are read in the Church. Finally, he is present when the Church prays and sings, for he himself promised: Where two or three are gathered in my name, I am there in their midst.
Indeed, in this great work which gives perfect glory to God and brings holiness to men, Christ is always joining in partnership with himself his beloved Bride, the Church, which calls upon its Lord and through him gives worship to the eternal Father.
It is therefore right to see the liturgy as an exercise of the priestly office of Jesus Christ, in which through signs addressed to the senses man’s sanctification is signified and, in a way proper to each of these signs, made effective, and in which public worship is celebrated in its fullness by the mystical body of Jesus Christ, that is, by the head and by his members.
Accordingly, every liturgical celebration, as an activity of Christ the priest and of his body, which is the Church, is a sacred action of a pre-eminent kind. No other action of the Church equals its title to power or its degree of effectiveness.
Inthe liturgy on earth we are given a foretaste and share in the liturgy of heaven, celebrated in the holy city of Jerusalem, the goal of our pilgrimage, where Christ is seated at the right hand of God, as minister of the sanctuary and of the true tabernacle. With the whole company of heaven we sing a hymn of praise to the Lord; as we reverence the memory of the saints, we hope to have some part with them, and to share in their fellowship; we wait for the Saviour, our Lord Jesus Christ, until he, who is our life, appears, and we appear with him in glory.
By an apostolic tradition taking its origin from the very day of Christ’s resurrection, the Church celebrates the paschal mystery every eighth day, the day that is rightly called the Lord’s day. On Sundaythe Christian faithful ought to gather together, so that by listening to the word of God and sharing in the Eucharist they may recall the passion, death and resurrection of the Lord Jesus and give thanks to God who has given them a new birth with a lively hope through the resurrection of Jesus Christ from the dead. The Lord’s day is therefore the first and greatest festival, one to be set before the loving devotion of the faithful and impressed upon it, so that it may be also a day of joy and of freedom from work. Other celebrations must not take precedence over it, unless they are truly of the greatest importance, since it is the foundation and the kernel of the whole liturgical year.
℟. As our priest, Christ prays for us; as our head, he prays in us; as our God, we pray to him,* but let us recognise our voices in him and his voice in us.
℣. When we pray to God, let us not separate ourselves from the Son,* but let us recognise our voices in him and his voice in us.
Let us pray.
Almighty ever-living God, direct our actions according to your good pleasure, that in the name of your beloved Son we may abound in good works. Through our Lord.
SEE AS WELL: TOP 10 REASONS WHY THE CATHOLIC CHURCH IS THE ONE TRUE CHURCH FOUNDED BY CHRIST HERE.
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