How we change what others think, feel, believe and do
Noun metaphors replace a normal noun with one that is the vehicle for the metaphor.
Today is a prison and I am the inmate.
Her eyes were an ocean of blue.
Metaphors say 'A is B' -- thus nouns are the most common form of metaphor in an implicit subject-object relationship.
An appositional metaphor occurs where one noun modifies another noun.
Jane, a star in the local firmament, was there.
A possessive noun metaphor associates the subject with the vehicle through implication of ownership.
You are the star in my firmament.