Allegory is similar to metaphor, but is usually more
elaborate. In an allegorical narrative, each character (or,
sometimes, object) has both a literal meaning and a consistent
metaphorical meaning, and the story proceeds on two levels at
once. Thus, when Spenser's Redcross Knight fights with the
dragon named Error, we see the battle of a knight and a dragon
at the literal level, and a conflict between the (generalized)
Christian and the idea of error at the allegorical level.
Personification is a crude
kind of allegory: abstract qualities are turned into people.
From the Guide to Literary Terms by Jack Lynch.
Please send comments to Jack Lynch.
Note: This guide is still in the early stages of development.
Three question marks mean I have to write more on the subject. Bear with me.