This book gives a thorough synopsis and articulation of the theology of Thomas F. Torrance, one of the most consistent evangelical theologians of this century. The inner structure of his theology reveals three concepts that revolve around an axis of union and communion: "perichoresis, unio hypostatica, " and "koinonia." Torrance's central theme of union with Christ is established in his Christology and soteriology, is confirmed by his epistemology, and bears great fruits in his ecclesiology and sacramentology. This intrinsic Christological pattern runs through the entire structure of his theology. The recovery of such an understanding of union with Christ provides critical and constructive implications for the theological, ecclesiological, and liturgical renewal of the Church.