Roland Barthes identified 5 codes that are woven into texts to create meaning: 1) Cultural/Referential Code refers to outside knowledge, 2) Semantic Code refers to additional meanings/connotations, 3) Symbolic Code organizes meanings into deeper sets through opposing ideas, 4) Hermeneutic/Enigma Code refers to unexplained elements that keep the audience guessing, 5) Proairetic/Action Code builds tension by indicating something will happen next. These codes underpin our understanding of texts and keep audiences engaged.