In the forty years since 'Sacrosanctum Concilium', the Church has instituted new liturgical books with new rites, and a liturgy that Catholics can hear and respond to in their own language. Active participation is being examined again in light of recent re-examinations of the new rites. This thought-provoking collection presents four different examinations of the concepts of active participation and the liturgy by four leading contemporary figures in liturgical and sacramental theology today. A thoughtful introduction by Cardinal George Pell leads into the essays by Cardinal Francis Arinze, Cardinal Francis George, and Cardinal Jorge MÃ©dina. Each is a leading pastoral voice in the post-Vatican II Church as well as a highly regarded theologian. This book also contains the document 'Sacrosanctum Concilium'. Published by Liturgy Training Publications.