Breathing is one internal function that the conscious mind can control with comparative ease. The effect of controlled breathing is almost like communication with all conscious parts of one's being saying to them, "Simmer down and listen; there is something beyond the turmoil". It is communication in action that often works when words merely go in one ear and out the other, not even changing the cognitive mind. In essence, the effect is to turn all the elements of our will toward stillness and waiting.
Dr. Torres had never seen teeth as bad as those he saw at La Mesa. "This stuff wasn't in any of my books." He noticed that the worst problems often belonged to the toughest men and women in the prison, and even the hardest cases cried when he showed them their new teeth in the mirror.
Some of the inmates he worked on still stay in touch with him. "They call me all the time and tell me, 'Hey, I'm working over here, I'm working over there,'" he says. "The jobs are no big deal, but they're working, which they couldn't do before, because people didn't accept them. Nobody except Mother Antonia cared for them."
~ from PRISON ANGEL by Mary Jordan and Kevin Sullivan