What does Eco mean by interstices?

In the context of Umberto Eco’s discussion in chapter 7, The Interview, from the Class 12 English textbook, interstices refer to the spaces between the words and the silences within communication. Eco emphasizes that these gaps are significant as they allow for interpretation and meaning-making beyond the literal text. He suggests that it is in these interstices that deeper understanding occurs, where the reader or listener can engage with the subtleties and nuances of language. This concept underscores the complexity of communication, indicating that what is left unsaid can be as powerful as the words themselves.