Knowledge of psychological well-being persistently lags behind knowled
ge of psychological dysfunction. The imbalance is evident in magnitude
of research-studies of psychological problems dwarf the literature on
positive psychological functioning-and in the meaning of basic terms
(e.g., typical usage equates health with the absence of illness). A pe
rson is viewed as mentally sound if he or she does not suffer from anx
iety, depression, or other forms of psychological symptomatology. This
prevailing formulation never gets to the heart of wellness; to do so,
we must define mental health as the presence of the positive. To expl
icate the positive is, however, to grapple with basic values and ideal
s of the human experience. These values are no less evident in definit
ions of human suffering, although consensus in identification of the n
egative is somehow easier to achieve. Despite these challenges, much h
as been written, within the field of psychology and outside it, regard
ing the contours of positive psychological functioning.