This game is based off of an old legend. I believe it is Greek, or Roman (doesn't make much of a difference because they had the same gods). In the legend a man was allowed to go to Hades and when he was there he begged for his wife back. Hades (The god of Death and also the name for their place where you went when you died) allowed him to take his wife back, but on his way back to the world of the living he was not allowed to look back at her.