Pain is like the warning lights on your car's dashboard. It alerts you to something that needs investigation. Pain serves an important function. It's your body's way of saying, "Pay attention."
We all avoid pain. You wouldn't knowingly slam your thumb in the car door or touch a hot stove. It's human nature to avoid situations that cause pain, and we do what we can to rid ourselves of the pain as soon as possible -- such as taking an aspirin for a minor headache.