Original German edition: Theologie der Liturgie: die sakramentale Begründung christlicher Existenz (Gesammelte Schriften 11) -- Freiburg im Breisgau : Verlag Herder GmbH, ©2008.

Includes bibliographical references (pages 615-623) and indexes.

The essence of the liturgy -- Time and space in the liturgy -- Art and liturgy -- Liturgical form -- The sacramental foundation of Christian existence -- On the concept of sacrament -- On the meaning of Sunday for Christian prayer and Christian life -- Is the Eucharist a sacrifice? -- The problem of transubstantiation and the question about the meaning of the Eucharist -- The Eucharist, heart of the church -- Form and content of the eucharistic celebration -- On the structure of the liturgical celebration -- Eucharist and mission -- Eucharist, communio, solidarity -- "Built from living stones" : the house of God and the Christian way of worshipping God -- On the question of the orientation of the celebration -- Homilies -- On the theological basis of church music -- The image of the world and of man in the liturgy and its expression in church music -- "In the presence of the angels I will sing your praise" : the Regensburg tradition and the reform of the liturgy -- The artistic transposition of the faith : theological problems of church music -- "Sing artistically for God" : biblical directives for church music -- Professional church music as liturgical and pastoral ministry -- Change and permanence in liturgy : questions to Joseph Ratzinger -- Worship in the parish communities fifteen years after the Council : a sermon delivered to the bishops' conference in Fulda -- In memory of Klaus Gamber -- The theology of the liturgy -- Assessment and future prospects -- Answer to the open letter of Olivier Bauer -- Fortieth anniversary of the Constitution on the Sacred Liturgy : a look back and a look forward -- The organic development of the liturgy -- "Rouse your power and come" : Advent sermon in the Cathedral of Trier, December 4, 2003.