Elvis uses it, but so does Shakespeare in this famous line from Romeo and Juliet Juliet is the sun.

He didn't know Shakespeare wrote Romeo and Juliet.

Now, here, Shakespeare gives the thing, Juliet, a name that belongs to something else, the sun.

Well, you don't say, Juliet is the sun, does that mean she's a glowing ball of fire?

And metaphor gives us a much more vivid understanding of Juliet than if Shakespeare had literally described what she looks like.

And yet, you put them together in a particular network, and what you get is the capacity to write Romeo and Juliet.

Second Man Romeo and Juliet, Sassi and Panno, Dodi and Diana, Heer and Ranjha, this is love! Third Man My greatest fear is ...

We mix and match what we know about the metaphor's source, in this case the sun, with what we know about its target, Juliet.

And this is the brain region you used when you saw the pictures I showed you, or when you read Romeo and Juliet or when you tried to understand Alan Greenspan.

Well, think about what artists, novelists and poets have in common, the ability to engage in metaphorical thinking, linking seemingly unrelated ideas, such as, It is the east, and Juliet is the Sun.

Our self deception becomes a positive illusion why movies are able to take us onto extraordinary adventures why we believe Romeo when he says he loves Juliet and why single notes of music, when played together, become a sonata and conjure up meaning.