FC Mellon - thanks!!
I have a book (can't remember the title, but I'll find it if you want me to) which talks about how they (the authors) think that it is inbuilt into us that we need to have resolution - we have an inate need to see wrongs righted, justice enacted. If we do not, the hate can literally clog our minds. They then argue that dreaming exists to clear your unresolved upsets so you don't go around concentrating on your anger instead of whatever tasks need to be done to ensure your survival.
I'm not happy with some parts of the book/idea, but can identify with a mysterious loss of anger over-night. Often I go to bed furious with a relative of someone else who has angered me, but by morning my anger has dissappeared. I 'hate' that!
