Most of us see perfectionism as a harmless tendency to hold ourselves to high standards, or a reluctance to accept mediocre results. In fact, many of us consider perfectionism to be a positive trait, a sign that someone cares and is deeply driven to succeed. Unfortunately, this casual acceptance of perfectionism conceals a potential danger because a lack of clarity around what perfectionism is and isn’t opens us up to a fatal error. Unknowingly, we celebrate and endorse a habit that leads to unnecessary pain and suffering, as well as impacts our performance.