Absence of Focal Point

I've been waiting to use Jackson Pollack as an example and this seems like as good an opportunity as any.  This piece, titled "The Key" is an example of a piece of art with no real focal point.  While there is something that absolutely captures me with this piece, I am having a difficult time understanding what it is and why it is able to do this since my eye isn't quite sure where to land when looking at it.  I find myself looking for something to capture my eye, and when not one single element does I am not sure how to feel. 

Image courtesy of: http://www.ibiblio.org/wm/paint/auth/pollock/pollock.key.jpg