The article raises the question whether the term diegesis—despite its rather widespread use among scholars—lacks a coherent definition. When diegesis is interpreted as the “narrated world,” the concepts related to hetero- and extradiegesis turn out to be partly inconsistent. This is why the article resorts to the notion of world; it considers defining diegesis as a “limited field” within the narrated world. However, this attempt at defining diegesis reveals certain peculiarities of representation. Their analysis leads to another characterization of diegesis: as—roughly speaking—the information explicitly conveyed by a representation. As an effect of processing meaning, diegesis is, then, not a narratological tool but an epistemic phenomenon that requires further examination.