Orthodox Church in the twentieth century. In the opening chapter of his Introduction to Liturgical Theology,3 Schmemann, speaking of the liturgical revival movement that took place in Orthodoxy, Catholicism, and various parts of Protestantism in the latter part of the nineteenth century and the first half or so of the twentieth, says that the “substance [of the movement] lies in the genuine discovery of worship as the life of the church, the public act which eternally actualizes the nature of the