Heh,When my grandma died i really paid attention to ghosts.From What my family belives,Every month/week You should out intence sticks in the roads(Only In the street) and let them burn to let the ghost find it's way to our house and let it have some food.We also Have to make a very big house(well some priest our something i dunnp')and place a black&white picture in there and it's made of paper.We burn it to accend to heaven.
Don't ask me why i don't really know.But this is why i belive in ghohts for some reason.
I also have some strange dreams about her.