Honesty can force any dysfunction in your life to the surface. Are you in an abusive relationship? A refusal to lie to others - How did you get that bruise? - would oblige you to come to grips with this situation very quickly. Do you have a problem with drugs or alcohol? Lying is the lifeblood of addiction. If we have no recourse to lies, our lives can unravel only so far without others noticing. Telling the truth can also reveal ways in which we want to grow but haven't.