spirit. (Spirit and soul are sometimes used interchangeably in Scripture.) 5. Spirits of human beings are moral and rational in ways that animal “spirits” (if there be any) are not. The integration and interactions of body and spirit are mysterious and wonderful. These things will likely always be beyond our full comprehension, for we are creatures, not the Creator (Psalm 139). Realistic dualism is a model that enables us to understand in a straightforward way what Scripture teaches about the nature