In Irish Celtic lore, «thin places» are those locales where the veil between this world and the otherworld is porous, where there is mystery in the landscape. The earth takes on the hue of the sacred among peoples whose connection to place has remained unbroken through the ages. What happens, then, when a Celtic view of nature is brought home to a North American landscape in which many inhabitants' ancestral connections to place are surface-thin? In a quest to find a deeper spiritual...