The Thinking Behind The Tweet
"Your tooth will cease aching if your house is afire..." Frank Channing Haddock made that point in his 1910 classic, 'Power of Will'.
Long before the medical sciences confirmed the concepts of neuroplasticity, people knew the awesome power & virtually unlimited possibilities available to the human mind.
If emergencies can remove the pain of toothaches then properly trained minds can do the same thing.
Our minds have the ability to remove the 'negative feelings and thoughts' we encounter during day-to-day life.