CHAPTER TWO THE SACRAMENTAL CELEBRATION OF THE PASCHAL MYSTERY

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The catechesis of the liturgy entails first of all an understanding of the
sacramental economy (Chapter One). In this light, the innovation of its
celebration is revealed. This chapter will therefore treat of the celebration
of the sacraments of the Church. It will consider that which, through the
diversity of liturgical traditions, is common to the celebration of the seven
sacraments. What is proper to each will be treated later. This fundamental
catechesis on the sacramental celebrations responds to the first questions
posed by the faithful regarding this subject:
– Who celebrates the liturgy?
– How is the liturgy celebrated?
– When is the liturgy celebrated?
– Where is the liturgy celebrated?

From The Catechism of the Catholic Church – rosary.team

Original Link: https://www.vatican.va/archive/ENG0015/__P36.HTM