This is a study of how Christian worship, viewed in its deepest sense, is a response of man to the Eternal. There is first an examination of the basic characteristics, in ritual, symbol, sacrifice, and sacrament. The nature and the significance of the Eucharist are thoroughly treated. In the second part of the book there is a detailed treatment of selected traditions of worship, including, among others, the Reformed Church, the Anglican Church, and the Catholic, Eastern and Western.