Diaries often have printed material at the front (and sometimes back, or between pages). Including recipes, household tips, lunar and solar movements, international dialling codes… this material is dubbed a ‘paratext’.
Paratexts = information
Information = knowledge
Knowledge (can be seen to) = a way of knowing the world
Knowing the world, describing the world (can be viewed as) = a form of control over it.
Diarists write about their lives. The narrative structure diarists give to their lives in the pages of their diaries provides some a sense of structure, even, perhaps, a sense of reality and control in their lives.
Here are some wonderful examples of paratextual material, note that observing and cataloging the moon’s movements is not to control the moon…