boredom, cheerfulness, melancholy [1], guess everything makes us creative
[1] http://www.wired.com/2010/10/feeling-sad-makes-us-more-creat...
[1] http://www.wired.com/2010/10/feeling-sad-makes-us-more-creat...
If I'm sad, I'm too busy wallowing in self pity than to do anything meaningful.