I don't know if it's hormonal or chemical but I sometimes get big bolts of joy. Sometimes these come for no reason at all. I'm driving down the road and BAM I just want to shout out, "I'm so happy".
Sometimes they are because I have not seen BigMan in a while and he pops into the dining hall and my heart leaps a bit. Or I catch sight of one of my kids having a good moment at school or I spy them laughing really hard.
I remember being in college and walking around campus, thinking, "I am in COLLEGE."
It's a little bit like thinking in good capital letters!