By embracing the wisdom of Celtic Christianity, suggests John Philip Newell, we can learn how to listen to the sacred and see the divine in all of creation and within each of us. Human beings are inherently spiritual creatures, but our cultures—and at times even our faiths—have made us forget what each of us already knows. To illustrate the power of this way of thinking, Newell introduces some of Celtic Christianity's leading practitioners, including Pelagius, Brigid of Kildare, John Muir, and Teilhard de Chardin.