The unnamed narrator is often considered by critics to be a stand-in for Kundera himself, which is why this guide uses masculine pronouns to refer to this character (though it's impossible to say for sure whether Kundera intends the narrator to be a character apart from himself). The narrator does not have an active role in the plot, but he often breaks into the narrative to provide philosophical or historical context, such as explaining the ideas of eternal return and kitsch and offering his opinions on them. Additionally, the narrator makes it clear that he is inventing the novel's characters, especially Tereza and Tomas, and he often comments on the storytelling process as it's happening. At times, the narrator provides small amounts of information about his own life (referring to childhood experiences, for example), but he never reveals much about himself or clearly identifies himself to the reader.