The only thing I fear on a golf course is lightning...and Ben Hogan.
The three things I fear most in golf are lightning, Ben Hogan and a downhill putt.
When I swing at a golf ball right, my mind is blank and my body is loose as a goose.
I'd say that golf is about 75% mental. If your state of mind gets out of kilter, you're worse off than a tomcat floating on a log.
If a lot of people gripped a knife and fork the way they do a golf club, they'd starve to death.
Make the basic shot-making decision early, clearly and firmly, and then ritualize all the necessary acts of preparation.