The relationship between personality disorders, normality and healthy personality is discussed from a developmental and normative perspective. Psychological traits unique to the individual are seen as coexisting and continuing throughout the life span of personality development and
across the traditional boundaries of personality disorders, normal personality, and healthy personality. This paper attempts to extend the pioneering work of Millon into the realm of healthy personality. Healthy personality is conceived of as an extension of a three-factor model with: mystical,
hardy, and self-actualized personalities composing the healthy end of the spectrum.