Sliced Light

Off late, I've been fascinated by the shapes that light takes when passing through obstacles. Like the bars on this train window. Is darkness an entity on its own, losing the battle to light as it cuts through and takes shape? Or is darkness simply a state of the absence of light, where light then gives form to everything it touches?  I'd like to think of it being the former, coz otherwise, light wins and comes out on top. I can't let that happen. Darkness is an old friend,  perhaps one you've had too. Allepey Railway Station, Kerala.