A friend of mine whom I think is a good writer was taking a strong position. I think it was a bit extreme. She was saying that fiction writing should always try and be concrete or use the things that can be described firmly in the five senses. I am expecting you guys think abstract has a time and a place as well as concrete. I just wondering when you think each should be used. To add an example. I had a line like this. The friend of mine said this was bad. "The familiar sensation of having to pee in the morning woke Jackie up. Poking her head out of the blanket with half open eyes she felt the cold morning air on her face. It was a demon she was not yet willing to face as she retreated back under the blanket." My friend thought the use of demon ruined this. Opinions?