Have you forgotten about a pain when you are doing what you love?
Maybe you were playing with your grandchild, or participating in a sport or hobby, and a pain or discomfort you had isn’t relevant any more. Is pain a solid and unchangeable, or do you find it changes based upon your state of being or energy level?
If our pain can change with our state of being, is the pain really being caused by the damaged tissues, joints, or nerves?
What if pain was an emotion? One that can have varying intensities.
This is the question posed by researchers and discussed in this Scientific American Article.
http://www.scientificamerican.com/article/is-pain-construct-of-mind/

When you are not a victim of your pain, but find you can control pain (even if only a little), it can change your entire outlook on your body, and your health.