We think that the world is a solid, vivid place, full of shape and colour and solid objects like this table and this microphone and so on, but we actually create that in our heads out of the bits of information that hit the back of our eyeballs or hit our eardrums or hit our tongues or whatever.
I think you get most of the most interesting work done in fields where people don't think they're doing art but are merely practicing a craft and working as good craftsmen. Being literate as a writer is good craft, is knowing your job, is knowing how to use your tools properly and not to damage the tools as you use them.