It's as acstract as many here.
I'm not sure: is this a justification for its existence? ;-)
For the sake of discussion i'd like to be a nay-sayer on this one. As far as abstraction goes this one would work as well (and in my personal opinion; better) if the lamp wasn't visible. Cropped just below the lamp so both shadows are visible would have equal tension, and possibly even a little more intrigue.
Additionally, the image seems to be (lens) distorted, which, for these type of images, is detrimental.