Exegesis is also represented in the scholia. When the scholiasts turn to interpretation they tend to be most interested in explaining background material, e.g., reporting an obscure myth to which Homer alludes; but there was also a fashion for allegory, especially among the Stoics. The most notable passage is a scholion on "Iliad" 20.67, which gives an extended allegorical interpretation of the battle of the gods, explaining each god as symbolic of various elements and principles in conflict with one another, e.g., Apollo is opposed to Poseidon because fire is opposed to water.