Halloween and its traditions prove that the celebration is associated with a false belief about the dead and the demons.
If we trace Halloween's origins to Samhain, "the ancient pagan feast celebrated by the Kelt people more than 2,000 years ago", says The World Book Encyclopedia.
The Kelts believed that in the [Samhain] time, the dead could walk among the living. In medieval Britain, beggars visit homes to ask for food in return because they already pray for the dead, and they usually carry hollowed purple turnips and filled with candles that symbolize the soul trapped in purgatory.
During the 1800s in North America, purple turnips were replaced with pumpkins because the gourd was easy to get and was easily perforated and shaped.