Pass It On®
Emptiness is a symptom that you are not living creatively. You either have not goal that is important enough to you, or you are not using your talents and efforts in a striving toward an important goal.
I really like this quote, it speaks directly to those who feel like challenge is a necessity. I don't believe we were put on this earth to live the easiest lives possible. We are to make the best of what we have. Struggle almost goes hand in hand with determination.