Pain.
What is it for?
It teaches. It punishes. and it is a force to be listened to.
It can tear you  apart.. It can change you from wrong to right.
It will bring you to your knees in the night.
Pain is a message that is of many different forms.
Can you distinguish such from your norm?
Where is it coming from? What is causing it?
Better fight for a cure.
Or pain shall make a smart man into any idiot.