Tough...
I don't take life very seriously, but there are a few things I take very seriously.
In no particular order:
Love (and the object of my affections)
Learning
Religion
Music
So, my life is driven by abstract, loosely defined and ultimately unachievable goals (as there is always more I can do), and again in no particular order...
*) To love
*) To learn at every opportunity
*) To be closer to "God"
If someone wants to supply a functional analysis, I would be grateful (otherwise I can't vote, lol)