John S. Dunne, a Catholic theologian at Notre Dame, explores contemplation as a journey from loneliness through spiritual friendship toward union with God. Dunne draws on a wide range of sources, from Augustine and Aquinas to modern poets and philosophers, to articulate an understanding of contemplative life as the missing dimension in contemporary existence. He distinguishes between loneliness, which comes from isolation, and solitude, which creates space for encounter with the divine. The book traces how spiritual friendship, relationships grounded in shared pursuit of God, can transform loneliness into solitude and open paths toward deeper union. Dunne writes in a meditative style that enacts the contemplative attention he describes, circling around themes and approaching them from multiple angles rather than arguing in linear fashion. He examines how love transforms the mind, creating new ways of seeing that reveal dimensions of reality hidden from ordinary perception. The book addresses readers seeking to deepen their spiritual lives, offering both theological reflection and practical wisdom about prayer and attention. Dunne's approach is ecumenical in drawing on many traditions while remaining rooted in Catholic contemplative practice. The result is a guide to interior life that takes seriously both the difficulty of contemplation and its transformative possibilities.