II. How is the Liturgy Celebrated?

From The Catechism of the Catholic Church

1150
Signs of the covenant. the Chosen People received from God distinctive signs
and symbols that marked its liturgical life. These are no longer solely
celebrations of cosmic cycles and social gestures, but signs of the covenant,
symbols of God’s mighty deeds for his people. Among these liturgical signs from
the Old Covenant are circumcision, anointing and consecration of kings and
priests, laying on of hands, sacrifices, and above all the Passover. the Church
sees in these signs a prefiguring of the sacraments of the New Covenant.

PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY

SECTION ONE THE SACRAMENTAL ECONOMY
- CHAPTER TWO THE SACRAMENTAL CELEBRATION OF THE PASCHAL MYSTERY
  - Article 1 CELEBRATING THE CHURCH’S LITURGY
    - II. How is the Liturgy Celebrated?

From The Catechism of the Catholic Church – rosary.team