“Life is fast, and I’ve found it’s easy to confuse the miraculous for the mundane, so I’m slowing down, way down, in order to give my full presence to the extraordinary that infuses each moment and resides in every one of us.” At 23, Andrew Forsthoefel walked out the back door of his home in Chadds Ford, Pennsylvania, with a 50-pound backpack, an audio recorder, his copies of Whitman and Rilke, and a sign that read “Walking to Listen.” In 2011 he had just graduated from Middlebury College and was ready to begin his adult life, but he didn’t know...