Revenants or ghosts are said to be the spirits or souls of the departed who return to earth and in turn haunt the area where they'd met their demise.

They come back to the world to seek vengeance or something valuable that'd been taken away from them. For example, it could be a woman who tragically lost her child or someone whose lover had been killed and sometimes the people who were deeply hurt would take their own life this resulting in their never ending quest to find what they'd been longing or what they'd lost before their departure.

In English and Irish legends, ghosts have a significant importance. As mentioned above, the spirits of those who were emotionally wounded return to life and start a series of hauntings. Ghost stories mostly happen in desolate places such as abandoned house or buildings, crossroads, woods, cemeteries, churches and even amusement parks. The typical ghost manifestations are noises, furniture moving, cold spots, voices, knockings ...and so on.

In the Catholic religion, the idea of a purgatory is set to throw light on what happens in the afterlife. Purgatories are there to shelter the souls before they go to heaven. Theses souls (namely children that died before being baptized) could come back on earth to seek forgiveness, help or prayers.

Ghost apparitions are always terrifying. Eliphaz, who was Job's friend, came to him one day to comfort him and then a ghost appeared to him. He said: "Fear and trembling seized me and made all my bones shake. A spirit glided past my face, and the hair on my body stood on end. It stopped, but I could not tell what it was. A form stood before my eyes, and I heard a hushed voice." Job IV, 15, 15, 16.