There is a very solid effect that can be gained from the use of a repeating motif; be it in the geometry of arabesques, the spiraling repetition of fractals, or in any other method that can be reduced to a single, discrete set of building blocks...or in this case, block.

The viewer is introduced to a meta-question, in the form of a question(s) enclosed in a box desnoted with a question-mark. Nothing says if the blocks contain something unknown, or if they represent something exogenous to the image. Why they are clustered also gives no hint.

The viewer is otherwise left with a symbolic representation of the very nature of inquiry or an engima. The technique used to render is clean, unobtrusive and grabs the eye, but does not lack subtle detail.