If you ever feel... just flat, listless, bored with life.  
If you ever wonder what is the point?  Why do I even bother?
Then this is for you.
Before I met my wife, (who has since moved on), I was writing a poem/song called "Waiting For Death".
The very fact that I was writing it, was enough to stop the downward spiral.  Creating stuff, written, painted, digital, turns depression around.  Its not possible to stay depressed while you are creating