Different networks in the brain can create the same emotion. And yes, emotions are created by our brain. It is the way our brain gives meaning to bodily sensations based on past experience. Different core networks all contribute at different levels to feelings such as happiness, surprise, sadness and anger.
<h2>Answer: Pick the mood you want to evoke. This is the feeling or emotion you want to give to your readers, and what all the elements in your short story will work together to achieve ^^</h2><h2 />