A metaphor is a figure of speech in which an implicit comparison is made between two unlike things that actually have something in common. People invent metaphors to describe things and concepts in very vivid ways. Metaphors have been used for a long time. The Bible used a specific kind of metaphor called a parable, in which a whole story based on practical situations was told to illustrate moral lessons. The comparison is made between the physical world and spiritual world. Metaphors are used to help people understand a point trying to be made.
College students sometimes concentrate too much on facts and statistics and do not look at the causes for those facts and statistics. They focus on what is right there in front of them instead of searching for any underlying meanings. The same could be said for culture and society as a whole. The only way metaphors would work better if the beginning said that this is a metaphor, because our society does not have the attitude to read things a second time and follow through. People do not want to put additional effort into anything, even if it means a gateway to greater understanding.