Sometimes you might need to do further research or exploring in the revising stage. Maybe your thesis/claim has changed slightly and you now need some evidence to support that change. Maybe you realize you did not fully support one of your key arguments and need more evidence and data. Even in a narrative essay, you might decide that a fact or quote could help the essay be more credible or help your audience connect more. In any case, be open to going to look for more resources in the revision stage. As you revise, keep an eye out for gaps in specific detail and support.