Whether you lead, contribute, belong, or volunteer, purpose becomes powerful only when people can see themselves in it and act on it. For too many workplaces, teams, nonprofits, associations, community groups, and volunteer organizations, the purpose statement has become an inside joke. The words may be displayed prominently. They may appear on the website, in a volunteer handbook, or at the beginning of every presentation. But the people doing the work do not believe them. That is a serious...