The document discusses the differences between humans and animals, specifically focusing on the spiritual nature of humans. It argues that humans have both a fleshly nature and a spiritual nature, and that being "born again" through faith in Jesus Christ means one's spiritual nature is awakened. However, the fleshly and spiritual natures are in conflict with one another. The document encourages nurturing one's spiritual nature by focusing on spiritual things, prayer, and obedience to God in order to overcome the desires of the flesh.