CCC 1099
Christian Mystery›SECTION ONE THE SACRAMENTAL ECONOMY›CHAPTER ONE THE PASCHAL MYSTERY IN THE AGE OF THE CHURCH›III. The Holy Spirit and the Church in the Liturgy
The Spirit and the Church cooperate to manifest Christ and his work of salvation in the liturgy. Primarily in the Eucharist, and by analogy in the other sacraments, the liturgy is the memorial of the mystery of salvation. the Holy Spirit is the Church's living memory.