I've learned a lot about the transience of moods by keeping track of them via Moodscope. I almost never have a similar mood two days in a row. Mood is weather, not climate. You are not one single person -- different people pass through your brain, many times a day. Being aware of this hasn't kept me from having bad moods, but it has made me stop believing in them, if that makes any sense. I don't take them literally. I think "Oh, there's that thought again. It feels true now, but it'll feel false tomorrow, and true again next Wednesday."

Being realistic about the brain means making your peace with flux.