If the audience lets that stuff wash over them, you know - almost like music, rather than dialogue - and doesn't fight it, then they'll have a much easier time rather than being sort of frustrated and confused otherwise. But if you get in the right state of mind it really does work quite well.
As I was getting interviewed by the Wall Street Journal, or some big pub guy, all I remember was that he went off to the bathroom for a second, and they brought out my omelet. The next thing I remember, I woke up, and I was on the side of my own omelet, and there was no one at Buck's. Everyone was gone. They just let me sleep.