This book provides a phenomenological analysis of the corporate ecclesial consciousness as manifested in the major documents of Vatican II. The primary focus is on the deep structures of Lumen Gentium. This phenomenology of the ecclesial thought-processes involves a uniquely new sacramental theology or mystagogical catechesis whereby the Church is appreciated as a theophany of the Glorified Christ transfiguring its contemporary human dynamisms. The result is a pastoral anthropogony for the People of God implying a new theological anthropology in order to achieve the ultimate practical goal of the Council as outlined by Pope John XXIII. The key roles of Paul VI and Cardinal Suenens are emphasized in this new style of pastoral reflection.