Betty Neuman’s Theory interpreted through Mandala Art The large circle in the center is the focal point and includes the symbol for Maslow's hierarchy of needs: Physiological, sociocultural, developmental, spiritual. The concentric circles around the center signify client (brown triangle with a circle on top), environment (blue clouds and yellow circle sunshine), health (red crosses), and nursing (pink hearts). (Created by Amy, undergraduate nursing student Fall 2004)