One of the things they taught in the day hospital was visualization - at the time, I was in the mindset of a POW and completely resisted. But I picked up enough of it to realize it can be useful during stress. So I do zone out at times. I listen to a lot if music, too. So I may be the weird guy you see in the checkout line eyes closed very softly singing along with Green Day or U2 or Brad Paisley.