The perfect moment (occasion) to deliver a message (text)
Kairos
A term used to describe fiction, nonfiction or poetry that teaches a specific lesson or moral or provides a model of correct behavior or thinking
Didactic
An extreme exaggeration used to make a point or to stress an idea
Hyperbole
A character in a story whose primary purpose is to contrast characters with another character
Foil
When a humorous scene is inserted into a serious story, in order to lighten the mood somewhat
Comic Relief