Door god
A door god is a painting pasted on a door. These were used by the Chinese as good luck. Door gods can be seen on temples - places of religion - and other buildings. There is a belief that door gods stop evil spirits from going into the building.
Door gods are often in pairs, one for each side of the door. The first door gods may have been made for a Chinese Emperor, more than 1300 years ago. They showed his two best soldiers.