Ghost

Fear came upon me, and trembling, which made all my bones to shake. Then a spirit passed before my face; the hair of my flesh stood up. It stood still, but I could not discern the form thereof.” Book of Job 4: 14 – 16.The above statement shows how ordinary human fears the unknown, and in particular, ghosts. For them, it is a horrible experience when they come face to face with a ghost. In fact, the word “ghost” was derived from an ancient word which means “to be feared”. Despite the fear, we must try to understand the phenomenon scientifically. Ghosts are actually not as frightening as those Hollywood movies let us to believe. Hopefully when our understanding about them increases, we will become less afraid of them.Many people do not believe in ghosts, even when they see ghosts with their very own eyes. This is due to our behavior that tends to ignore anything that we cannot comprehend. There is no doubt that ghostly phenomena, if not ghosts themselves, exist. It is therefore our responsibility to study them, not dismiss them as mere hallucination. As Bertrand Russell, a mathematician and also a philosopher once said, "What we need is not the will to believe but the will to find out."In this article, we shall discuss various theories about ghosts. They might all be correct, in the sense that different haunting may require different explanation.