What is the purpose of pain?

But pain insists upon being attended to. God whispers to us in our pleasures, speaks in our conscience, but shouts in our pains: it is His megaphone to rouse a deaf world. –C.S. Lewis

I heard a radio minister today close with the above quote. In my work as a counselor most of my clients come in to see me as a result of emotional pain. When the pain has become so great they can no longer bear it they reach out for help. A part of my role is to help them apply sound principles from Scripture and psychology to improve their lives and stop the pain.

“And we know that for those who love God all things work together for good.” Romans 8:28