DO ANY OF YOU BELIEVE IN GHOST??? INTERESTING ONE

Here is some pictures taken in the Polaroid camera.In those pictures you can the white shadow which is called ghost. What is that ghost???
1.If any one died before any fulfillment in their life or an accident then its soul will never become calm even after the funeral,the soul will come around the people whom they knows well.This is one form of ghost
2.Then another interesting one is some of peoples who will do some magic and bring the ghost..

But the very serious one is,in the ancient days some of them told that ghost will come while the people commits suicide,also who never fulfill their needs in the life.