She reached up and lay her hand on my cheek. "You have the sweetest face," she said, looking at me dreamily. "It's like the perfect kitchen." I fought not to smile. This was the delirium. She'd fade in and out of it before the profound exhaustion dragged her down into unconsciousness. If you see someone spouting nonsense to themselves in an alleyway in Tarbean, odds are they're not actually crazy, just a sweet-eater deranged by too much denner. "A kitchen?" "Yes," she said. "Everything matches and the sugar bowl is right where it should be.
Patrick RothfussA tree doesn't make a thunderstorm, but any fool knows where lightning's going to strike.
Patrick RothfussAlso, worldbuilding touches all aspects of your story. It touches plot and character as well. If you don't know the culture your character comes from, how can you know what he's really like? You must know your characters on a much deeper level than you would if you just shrugged your way into a cookie cutter fantasy world.
Patrick Rothfuss