This book breaks new ground for the philosophy of religion by showcasing work that engages with the lived reality of the spiritual life. It demonstrates that philosophy's relationship with spirituality is more than a historical curiosity and that, in the twenty-first century, it is still meaningful to think about philosophy in connection with spirituality. The chapters are organised around the following themes: spiritual practice and philosophical understanding; philosophical reflections on living a spiritual life; philosophical problems concerning the spiritual life. The first part discusses whether or not the topic of spirituality should be given a more fundamental role within the philosophy of religion, and, if so, how that might be accomplished. The second part addresses fundamental issues concerning human beings, their lives, and their self-understanding in relation to the spiritual life. The final part considers philosophical problems that emerge when discussing the spiritual life. By bringing together discussions of these topics, this volume constitutes a valuable resource for scholars in disciplines in which the spiritual life is a focus of interest, particularly philosophy, theology, and religious studies.