The Hidden Messages in Water
I just picked up this book, the New York Times bestseller and featured in that movie What the Bleep? That movie left something to be desired, but the book is great.
A Japanese scientist took photos of water from mountain springs, and found that it formed crystals. Water from the tap forms no crystals.
He found that water exposed to the words "thank you" form lovely crystals, but water exposed to the word "Satan" forms an ugly, curdled pattern. Same for angry words.
His point is that because human beings are 70 percent water, we are directly affected on a physical level by what we say to each other.
A nice message about giving each other pats on the back.