Literature is a mirror of culture. The best illustration of this statement is a excerpt from “Shakespeare in the bush” by Laura Bohannan.

“What is a ‘ghost?’ An omen?”

“No, a ‘ghost’ is someone who is dead but who walks around and can talk, and people can hear him and see him but not touch him.”

They objected. “One can touch zombis.”

“No, no! It was not a dead body the witches had animated to sacrifice and eat. No one else made Hamlet’s dead father walk. He did it himself.”

“Dead men can’t walk,” protested my audience as one man.

I was quite willing to compromise.

“A ‘ghost’ is the dead man’s shadow.”

But again they objected. “Dead men cast no shadows.”

“They do in my country,” I snapped.”