Aligning with a group is included as one of the actions the unconscious self has a part in determining. This idea of people automatically having, and subsequently defending, a positive self concept is central to understanding human interaction at the individual and group level. Since the group identity is taken in as part of the self, it is no wonder that people defend actions, beliefs, and interpretations of their group so vigorously. By defending their group, they are also seeking to maintain their image of themselves as good, correct, or righteous. The group then serves as a source from which members can absorb positive characteristic into their personal identity.
Individuals can then use group membership to help build up their own positive self concept.
All groups that individuals find themselves a part of have a certain purpose, function, and origin. The group entity also has certain effects on its members, other groups, and the broader social environment itself. The creation of a collective social entity, or group requires that certain conditions are met. The third stage in the development of a group is when the mutually recognized similar individuals, as a whole, recognize their presence as an aggregate unit. The group identity takes its place within the member's self and becomes as much a part of that individual as his right arm.