Tatiana Plakhova wonderfully plays with the idea of synesthesia, plotting out fractal-like visualizations of music. Everything about this is the definition of my envy.
I've always been fascinated with interpretation. How one brain sees the world versus another. What information gets lost, or how it's contextualized with certain experiences. Plakhova's work is fantastic as there's this Rubik cube twisting of an experience, and you start to question what the quintessential essence of the original experience is versus what Plakhova presents to you.
To apply that to the higher level of design: Every illustration, package design, TV commercial, even web banner—makes me question whether the things I'm designing are effectively translating a client's goal into something their target will consume effectively. (See more of Plakhova's work at http://www.complexitygraphics.com/797484/VIOLIN-Red)