The answer is unambiguous - they are visual thinkers at the inspiration stage and the writer’s craft will take over to achieve rational objectives such as consistency of style, plot development and so on. Robert Louis Stevenson claims he saw the image of Dr Jekyll turning into the evil Mr Hyde. William Golding reports seeing the pigs head on a stake talking to the marooned children.We can only appreciate a poem or novel by seeing it when we read it, thus entering the author’s mind which their art invites us to do.