Catechism in a Year
Sunday, July 08, 2018
217. What is the meaning of the word "Amen" with which we conclude our profession of faith?
The Hebrew word "Amen", which also concludes the last book of Sacred Scripture, some of the prayers of the New Testament, and the liturgical prayers of the Church, expresses our confident and total "yes" to what we professed in the Creed, entrusting ourselves completely to him who is the definitive "Amen" (Revelation 3:14), Christ the Lord.
Further reading: CCC 1061-1065
218. What is the liturgy?
The liturgy is the celebration of the mystery of Christ and in particular his paschal mystery. Through the exercise of the priestly office of Jesus Christ the liturgy manifests in signs and brings about the sanctification of humankind.
The public worship which is due to God is offered by the Mystical Body of Christ, that is, by its head and by its members.
Further reading: CCC 1066-1070
These excerpts are from the Compendium of the CCC