A distinguished psychiatrist, spiritual counselor, and bestselling author shows how the dark sides of the spiritual life are a vital ingredient in deep, authentic, healthy spirituality. Gerald G. May, MD, one of the great spiritual teachers and writers of our time, argues that the dark 'shadow' side of the true spiritual life has been trivialized and neglected to our serious detriment. Superficial and naively upbeat spirituality does not heal and enrich the soul. Nor does the other tendency to relegate deep spiritual growth to only mystics and saints. Only the honest, sometimes difficult encounters with what Christian spirituality has called and described in helpful detail as 'the dark night of the soul' can lead to true spiritual wholeness. May emphasizes that the dark night is not necessarily a time of suffering and near despair, but a time of deep transition, a search for new orientation when things are clouded and full of mystery. The dark gives depth, dimension, and fullness to the spiritual life.