Despite strong evidence for the positive relationship between physical activity and mental health, physical activity is used far too little to promote health in mental health care. Fourteen caregivers working in community mental health services were interviewed about their experiences of motivating adult persons with psychiatric disabilities to be physically active, and data were analysed using a phenomenological-hermeneutical approach. Three themes emerged: (1) An approach of conscious acts, (2) Companionship as a joint creation, and (3) Understanding as a way to create meaning. The interpreted meaning of motivating to physical activity was expressed as a dynamic way of being, relating, and understanding.