In English (see Chinese "metaphor"), metaphor is different from simile. It is not expressed by like or as, but a rhetorical device that hides comparison. Metaphor is also called metaphor. Expression: A is B.
Metaphor is metaphor, using one thing as a metaphor for another.
Poetry, especially in modern times, has important characteristics in the collocation of words, and likes to break through the established relationship between words and connect some seemingly unrelated things together. Combining seemingly unrelated words together, new critics generally call it metaphor.
For example:
1. He is a pig. He is a pig. (Metaphor: He is a pig, which means dirty and gluttonous. )
She is a woman with a heart of stone. She is a woman with a heart of stone. (Metaphor: This woman is ruthless. )
Mark Twain is a mirror of America. Mark Twain is a mirror of America. It is easy to compare the reality of America with a mirror. )
For example:
The whole world is a stage. (Shakespeare)
(Source: Baidu Encyclopedia)