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.