The document discusses developments in the sacred liturgy following the Second Vatican Council. Some key points include:
- The Second Vatican Council encouraged new forms of participation in the liturgy through music, singing, and other practices.
- The Constitution on the Sacred Liturgy emphasizes active participation by the faithful and restoration of responses, songs, and prayers for the people.
- Reforms included use of local languages instead of Latin at Mass to help the congregation relate, as well as restoring liturgical roles for laity like lectors and cantors.
- The Council also revised the Liturgy of the Hours and Divine Office to involve more laity and celebrate it communally.