Metaphysics is when you act like something or someone is real. It may or may not be real but normally is not.

A example is when the three witches are introduced in the beginning of the play telling Macbeth three prophesies. “He will be thane of Cawdor, thane of glams and king.” These prophesies introduce Macbeth into the ideas of greatness, he will eventually follow through killing king Duncan, this brings the idea of fate.