In Chinese tradition, the Ghost Festival is celebrated during the seventh month of the Chinese calendar. It also falls at the same time as a full moon. During this month, the gates of hell are opened up and ghosts are free to roam the earth where they seek food and entertainment. These ghosts are believed to be ancestors of those who forgot to pay tribute to them after they died, or those who were never given a proper ritual send-off. They have long needle-thin necks because they have not been fed by their family, or as a punishment so that they are unable to swallow. Family members offer prayers to their deceased relatives, offer food and drink and burn hell bank notes and other forms of joss paper. Joss paper items are believed to have value in the afterlife,considered to be very similar in some aspects to the material world, People burn paper houses, cars, servants and televisions to please the ghosts. Families also pay tribute to other unknown wandering ghosts so that these homeless souls do not intrude on their lives and bring misfortune. A large feast is held for the ghosts on the fourteenth day of the seventh month, when people bring samples of food and places them on an offering table to please the ghosts and ward off bad luck.