This book is an effort to develop the idea of spiritual sustainability in architecture and explain how it might manifest itself in the cultural environment of the Hiberno-British Archipelago. This is not in any narrow nationalistic sense, for it transcends the closed minds of nationalists–it is the attempt to understand local human cultures in their global context. It is a thinking through a theology of nature, the place of humanity within the natural world, and how architecture presents a unique opportunity for us to live in harmony with sacred Creation.