%0 Journal Article %T The role of passion in sustainable psychological well-being %A Robert J Vallerand %J Psychology of Well-Being: Theory, Research and Practice %D 2012 %I Springer %R 10.1186/2211-1522-2-1 %X Using the Dualistic Model of Passion (DMP), the purpose of the present paper is to show the role of passion for activities in sustainable psychological well-being. Passion is defined as a strong inclination toward a self-defining activity that people like (or even love), find important, and in which they invest time and energy on a regular basis. The model proposes the existence of two types of passion: harmonious and obsessive. Harmonious passion originates from an autonomous internalization of the activity into one's identity while obsessive passion emanates from a controlled internalization and comes to control the person. Through the experience of positive emotions during activity engagement that takes place on a regular and repeated basis, it is posited that harmonious passion contributes to sustained psychological well-being while preventing the experience of negative affect, psychological conflict, and ill-being. Obsessive passion is not expected to produce such positive effects and may even facilitate negative affect, conflict with other life activities, and psychological ill-being. Research supporting the proposed effects and processes is presented and directions for future research are proposed. %U http://www.psywb.com/content/2/1/1/abstract