" It is not a lack of fear that separates elite performers from the rest of us. They’re afraid, too, but they’re not overwhelmed by it. They manage fear. They use it to focus on taking correct action. Mike Tyson’s trainer, Cus D’Amato, said, “Fear is like fire. It can cook for you. It can heat your house. Or it can burn you down.” And Tyson himself said that fear was “like a snap, a little snap of light I get when I fight. I love that feeling. It makes me feel secure and confident, it suddenly makes everything explosive. It’s like: ‘Here it comes again. Here’s my buddy today.’” It’s a dangerous place to be, too. Control can easily slip away, as Tyson’s unusual behavior will attest. "

― Laurence Gonzales , Deep Survival: Who Lives, Who Dies, and Why