Pain....it can be a terrible thing. It might be that you have had an accident or illness as the cause and you are stuck on pain killers.
OR, as in the video link attached, you could have decided to have a body piercing and didn't want to feel the pain.
What makes the difference between feeling pain and not feeling pain?
That's an interesting question, isn't it? And the answer is....
Well, we experience life through the filter of our beliefs. We represent to ourselves what the world means .