"Be ye angry and sin not
Let not the sun go down upon your wrath
Neither give place to the devil."
Aside from the generally good advice of resolving your differences quickly (especially with a spouse, as my mother applies this verse to that most often :), I've been reading Neil Gaiman's Sandman, so I'm taking these things with a bit more thought:
From Lorenz Hart (rough life, beautiful lyrics):
"When you're awake the things you think come from the dreams you dream."
- "When or Where", Babes In Arms, 1936
If I go to bed afraid or angry (or even just in a state of being stubbornly not willing to forgive and forget, even if I'm not particularly worked up at that moment), am I perhaps giving the petty daemons a little hook to grab on to and inflitrate my dreams?
...and do I thus wake up with a subconscious more angry/afraid, yet still without solid reason?
Is this why I erect scarecrows of real people in my mind and have arguments with them and assign accusations to them?