Normally diaries document real life events, but diaries In the Importance of Being Earnest tend to document fictions. Cecily writes about her fictional engagement to “Ernest” in her diary, showing it to be a conflation of fantasy and fiction, rather than a record of fact. Gwendolen also travels with a diary, in which she records her engagement to “Ernest,” a fictional character, rather than a real man. Because diaries are more like fictions, or novels they highlight the conflict between fact and fiction that courses throughout the play.