CCC1073…In the liturgy, all Christian prayer finds its source and good. Through the liturgy the inner man is rooted and grounded in "the great love with which [the Father] loved us "in his beloved Son. It is the same “marvelous work of God” that is lived and internalized by all prayer, "at all times in the Spirit."
CCC1085…The Paschal Mystery of Christ. by contrast [to other historical events] cannot remain only in the past, because by his death he destroyed death, and all that Christ is–all that he did and suffered for all men–participates in the divine eternity, and so transcends all times while being made present in them all. The event of the Cross and Resurrection abides and draws everything toward life.
From The United States Catholic Catechism for Adults
The Mass is a sacred meal, a sacred banquet, like the Last Supper, in which bread and wine become Christ’s Body and Blood, received in Holy Communion.
Through the ministry of the ordained priest, the Holy Spirit makes present at Mass Christ’s Paschal mystery, his dying and rising in which Christ is offered to the father to give him adoration and praise to save us from our sins and bring us divine life.
In the Mass, The lives of the faithful, their praise, sufferings, prayers, and work. are united with those of Christ and with his total offering, and acquire a new value reminding us of the importance of sacrifice in each individual’s life.
The offering of Christ unites the members here on earth and those in heaven.
The Eucharistic Liturgy contains the entire treasure of the Church since it makes present the Paschal Mystery, the central event of salvation. Eucharistic adoration and devotion flow from and lead to the Eucharistic Liturgy of the Mass.