V. The Sacramental Sacrifice Thanksgiving, Memorial, Presence

From The Catechism of the Catholic Church

1368
The Eucharist is also the sacrifice of the Church. the Church which is the Body
of Christ participates in the offering of her Head. With him, she herself is
offered whole and entire. She unites herself to his intercession with the
Father for all men. In the Eucharist the sacrifice of Christ becomes also the
sacrifice of the members of his Body. the lives of the faithful, their praise,
sufferings, prayer, and work, are united with those of Christ and with his
total offering, and so acquire a new value. Christ’s sacrifice present on the
altar makes it possible for all generations of Christians to be united with his
offering.

PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY

SECTION TWO THE SEVEN SACRAMENTS OF THE CHURCH
- CHAPTER ONE THE SACRAMENTS OF CHRISTIAN INITIATION
  - Article 3 THE SACRAMENT OF THE EUCHARIST
    - V. The Sacramental Sacrifice Thanksgiving, Memorial, Presence

From The Catechism of the Catholic Church – rosary.team