I'm happy because I randomly met a friend I've known all my life and barely ever see anymore in the metro after an afternoon of productive Chistmas shopping. We had a good conversation.
I'm happy because when I do a good job out of teaching, it shines back from the students. You can see it in their eyes.
And then, all the attention, trust and authority I have comes from them, not from me. What a wonderful job.
My wife feels free enough to shave her head bald and deal with society not accepting that. The fact that I love her and think she's beautiful (I also have a bald head!) is security enough!