What Is the Response of the Enlightened Person to a Horrible Headache?

As a human being, it's impossible to be free from pain. It is possible to have a headache and not feel the pain at all. Pain is like perceptions of colors: redness, greenness, hardness, softness, warmth, coolness, pain. They are physiological sensations that come from our nervous system. That response or reaction to pain is called suffering.