The Human Becoming Theory was developed by Rosemarie Rizzo Parse as a nursing theory to guide practice with a focus on quality of life from the patient's perspective. The theory posits that nursing aims to help patients transcend limits and emerge through rhythmic co-creation between the person and their environment. It was influenced by European philosophers and the Science of Unitary Human Beings. The theory is structured around the themes of meaning, rhythmicity, and transcendence.