Gauguin said : I shut my eyes in order to see
This means that if a painter limits himself to the mundane sight of the world, his ability to create things beyond the mundane sight is lost.
What I learn from this is that for one to arrive at a truly creative solution, one has to stop worrying about the norm. Creative solutions are obtained more easily if the norm is discarded and the mind is free to seek and try means that are new, different or innovated.