The liturgy, source and culmination of the Church’s whole life
Since the liturgy consists in an action presided by Christ (see SC 7), Christ himself is He who, in as much that He is the source, enriches the liturgy and as the head of the Church, direct it towards that fullness the He already possesses. Therefore, His work, which takes place between the historical past of Jesus of Nazareth and the future fullness of He who is Resurrected, becomes real in the today of the liturgy and is placed within reach for the faithful through the Church’s entire life. This takes place in a special manner through the sacraments, and among them the Eucharist stands out because it is the celebration of the mystery, hence the presentation of Easter.
This Christ-centeredness of the liturgy is the reason for which the historical referent and the presentation of the existence of the revelation within time becomes the present in what is called the "Liturgical Year". This does not coincide with the civil year, and simply reminds us that, thank to the liturgy, between the mystery of the Incarnation of the Word and the awaiting for the Lord of history, the liturgy’s main finality becomes real in praise worthy of the Holy Trinity and the wandering of the faithful, thanks to the priestly actions of Jesus Christ, (see. Heb 10,19-20), towards the fullness of redemption that is participation in that life of God who is love.
Therefore, the liturgy, in as much that it is the source from which all the Church’s power springs and culmination of all its activities (see. SC 10) achieves all that it represents: the approaching of the creature towards the Creator and the anticipated participation in its very existence, through the communication of grace to the faithful. They receive it in the sacraments, which accompany them throughout their lives, because the sacraments are by their sides during the great moments of human existence, from birth to the experiencing of the fragility of the creatural condition and death, including the two great sacraments at the service of the ecclesial community and that witness God’s unconditional love for mankind, and for life, symbolized by the love of the believing couple.
It is therefore necessary to emphasize the importance of ensuring that the faithful understand, through adequate catechesis, the sense of their baptismal consecration and therefore of their concelebration in the liturgy, because it is in the liturgy that they participate with greater fullness in the mystery that creates and marks the path towards the fullness of their lives within the Church. We can reaffirm without hesitation about the Church and those who belong to it, all that Luke says in his gospel about Jesus: "He advanced in wisdom and age and Grace with God and men" (Luke 2,52).
For this very reason, every time the disciples of the Master celebrate the sacraments, they summarize life itself, in which the grace of God is reflected, to celebrate it or more precisely, "concelebrate it", presided over by an ordained Minister, who represents Christ the Priest. The Minister in turn must make community life more dynamic in his ordained and lay ministeriality, to bring the Good News which in Christ created, in history and in mankind and in their daily effort to humanise the cosmos is nothing but the participation in the only adequate adoration by mankind in the mystery of the sanctity of God, made manifest in the Son Jesus Christ and continued by His Spirit.