To see is one thing; to picture or visualise is another. A person can see things, only when his eyes are open, and when his surroundings are illuminated; but he can have pictures in his mind's eye, when his eyes are shut and when the world is dark.
I've worked in the prison system, on death row and maximum security. I did that work for six years. I've worked with some of the most difficult people in our society. Buddhism was accessible and helpful for these individuals.