As I look back on 2007 and look forward to 2008, I think this quote from Oswald Spengler says it all. May you find purpose in your life and use it for good.
"This is our purpose:
to make as meaningful as possible
this life that has been bestowed upon us,
...to live in such a way
that we may be proud of ourselves,
to act in such a way
that some part of us lives on.