The book discusses the profound impact of the Second Vatican Council on Catholic theology and culture. It highlights the Council's decentralization of authority, which shifted from an institutional and legalistic model to a more communitarian and pastoral one, affirming the active role of laypeople. The Council's influence extended to theology, with a move from a rigid Thomism to a more fluid and multifaceted approach, characterized as "nuptial mysticism." This shift emphasized the passionate love of God for His people, drawing parallels with human relationships. The Council also led to changes in liturgy, with a shift from Latin to vernacular languages, which some argue diminished the mystery and elevation of the liturgy. The book acknowledges both the positive and negative aspects of these changes, emphasizing the need for a balanced and faithful interpretation of the Council's teachings.