I'll give you a few Doc Watson stories, here's one:
I set up some concerts for Doc in the 1990 to early 2000s. Doc and Rosa Lee used to sent me Christmas cards a couple years and he was kind enough to give me pass to the Merlefest every year for a while.
At one concert I gave Doc an award as one of the greatest guitarists of all time. Doc, who was blind, asked me to hold it up, then over the mic he said, "Isn't it beautiful."
It was as if he could see it though his other senses.
Another one: In between songs at a concert in Winston-Salem, I went up to adjust Richard's mic. Richard's set list fell off the amp so I picked it up. There was loud applause. I said "Hi Doc, I'm adjusting the mic" he turned to me and asked me what I had in my hand. I still had the set list in my hand so I set it on the amp.
How he knew I had the set list in my hand I'll never know.