What is pain?  Pain is a teacher, telling us that what we just did may not be smart.  Pain is life in a lot of ways, and a little bit of it never hurt anybody.  Pain brings the understanding that you have reached your limits.  Pain is the symptom of stretching those limits.  Pain comes when we stand up for ourselves.  Pain is when we lose something important.  Pain is daring to strive for what we want.  Most importantly, pain is weakness leaving the body.