Membership in a group can be a potent source of motivation—if we feel a genuine sense of belonging to the group, and if our personal identity feels firmly tied to the group and its success. When these conditions are met, group membership acts as a form of intrinsic motivation: that is, our behavior becomes driven by factors internal to the task, such as the satisfaction we get from contributing to a collective effort, rather than by external rewards such as money or public recognition.
