Contextualizing your discussion – making clear what it is that you are actually writing about – is, of course, fundamental. This may well involve a certain amount of summarizing (events, ideas, plot, etc.). But be aware, first, that your examiners will probably be entirely familiar with the information that you are summarizing, and second, that summary is not analysis. All contextualization should be kept to a minimum as it takes up space for presenting your own ideas. Where summary is necessary, it can be supplemented by providing comment on the information.