The text is organized around ʿIlm al-Maʿani, ʿIlm al-Bayan, and ʿIlm al-Badiʿ. Their functions are related but not interchangeable.
DisciplineCentral question
MaʿaniIs the expression suited to its intended meaning and situation?
BayanIs the meaning conveyed intelligibly, without needless conceptual obscurity?
BadiʿDoes the sound expression also have appropriate beauty?
All three aspects may appear in one sentence, but each calls for a different analysis.