Liturgy is a structured form of public worship or religious service, often involving specific rituals, prayers, readings, and ceremonies prescribed by a religious tradition. In the Catholic Church it includes all authorized forms in any language, in any part of the world, for the celebration of Mass.
The 1990s saw ongoing debates within the Catholic Church and among theologians, clergy, and laity regarding various aspects of the liturgy. These debates were influenced by the liturgical reforms initiated by the Second Vatican Council (Vatican II) in the 1960s, which aimed to modernize and make the liturgy more accessible and participatory.