This paper looks back over the eight books of John S. Dunne as forming a unified theological project in two phases, each comprising four books. Dunne's first phase is a “journey of the mind,” in which Dunne is concerned with knowing and unknowing, with understanding and insight, and his basic epistemological stance is developed. His second phase is a “journey of the heart,” in which he moves from the basic loneliness of the human condition, to the “heart's desire” for God, to the presence of God in the desiring. Several changes in Dunne's understanding of the human relationships with God, others, and self are traced here. Dunne's most recent book adds a “pilgrimage of the soul” to those of mind and heart, so this paper moves to a discussion of the meaning and development of Dunne's idea of “soul.” It concludes by considering Dunne's work as spiritual writing and as theology.