Boneless and muscleless -- he wanted you to swing easily and freely. He had some devotees in Hollywood in his heyday. He did exhibitions making tons of putts consecutively, putting with all sort of clubs, brooms, sticks, etc. Quite the showman. The hitting up on the ball idea is fine off the tee, but playing the ball forward and trying to hit up on the ball off the deck is tough. There's some video of him on YouTube, mostly when he was much older. He didn't want you taking divots. Some people claim more distance from his methods, but I can't see it. But swinging with freedom and without tension or fear is probably a good thing.