One or Two describes as & #34One-ism" and & #34Two-ism," the two ways of being spiritual. One-ism believes that everything that exists is of one substance and that the goal of theology, spirituality and even sexuality is to destroy all distinctions, and bring all things together. Two-ism believes that there is a God outside creation who made all that is not God and has structured creation for the good of humanity. Two-ism has implications in our theology, spirituality and sexuality. The book is based on the argumentation of the apostle Paul in Romans 1. Peter Jones analyzes the current cultural expressions of spirituality in light of these two approaches.