i want to know what is different between metaphor, direct metaphor and extended metaphor.?

A figure of speech in which a word or phrase literally denoting one kind of object or idea is used in place of another to suggest a likeness between them. Example: He was drowning in money

An extended metaphor is a metaphor that continues into the following sentences. An extended metaphor is also a metaphor developed at great length, occurring frequently in or throughout a work

Direct metaphors are concerned with direct mappings. between sensory properties and some abstract information.