This book is not a comprehensive study of Rumi and Gülen, but it seeks to explore the places where the thought of the one is echoed in the thinking of the other, either overtly or indirectly—and to note ways in which the opposite is true: that Gülen diverges from Rumi. The book is also seeking to suggest some of the larger contexts in which the thinking of both resides. Given the wide-ranging aspects of their respective writings, it should not be surprising if, minimally, we can find important foundation stones in both philosophy and theology in the edifices that they each construct.