Tells the story of the Liturgical Movement, tracing the reasons for its rise and growth, and providing a clear picture of the important figures and events behind this important revival. Stressing the monastic influence of the mid-nineteenth century, the study begins with a short but complete history of the movement. Attention is given to all the important figures of each nation who sparked revision of the liturgy. The writers then go on to show the development and fundamental ideas of the current revival. The liturgy, along with the Bible, is discussed in connection with the Christian ecumenical movement; and particular emphasis is placed on the "presentation of the Christian message" or catechesis. The main features of the liturgical movement and their application to daily Christian life are cogently discussed, using the liturgical teachings of Dom Odo Casel and the monastery of Maria Laach as a basis. The last part of this work is devoted to the principal advances made in this liturgical renewal in the twentieth century. Such aspects as the Divine Office, the liturgy and its relation to the Eucharist, the principal innovations and reforms in the Mass, and the sacramental requirements are described in detail. A full section is given to an up-to-date analysis of the liturgical constitution of the Second Vatican Council.