Halloween is an annual celebration, but just what is it actually a celebration of? And how did this peculiar custom originate? Is it, as some claim, a kind of demon worship? Or is it just a harmless vestige of some ancient pagan ritual?
The word itself, "Halloween," actually has its origins in the Catholic Church.
It comes from a contracted corruption of All Hallows Eve. Nov. 1, "All Hollows Day" (or "All Saints Day"), is a Catholic day of observance in honor of saints.
But, in the 5th century B.C., in Celtic Ireland, summer officially ended on Oct. 31. The holiday was called Samhain (sow-en), the Celtic New year.
One story says that, on that day, the disembodied spirits of all those who had died throughout the preceding year would come back in search of living bodies to possess for the next year. It was believed to be their only hope for the afterlife.
The Celts believed all laws of space and time were suspended during this time, allowing the spirit world to intermingle with the living.
Naturally, the still-living did not want to be possessed. So on the night of Oct. 31, villagers would extinguish the fires in their homes, to make them cold and undesirable.
They would then dress up in all manner of ghoulish costumes and noisily parade around the neighborhood, being as destructive as possible in order to frighten away spirits looking for bodies to possess.
The custom of Halloween was brought to America in the 1840's by Irish immigrants fleeing their country's potato famine.
At that time, the favorite pranks in New England included tipping over outhouses and unhinging fence gates.
The custom of trick-or-treating is thought to have originated not with the Irish Celts, but with a ninth-century European custom called souling.
On Nov. 2, All Souls Day, early Christians would walk from village to village begging for "soul cakes," made out of square pieces of bread with currants.
The more soul cakes the beggars would receive, the more prayers they would promise to say on behalf of the dead relatives of the donors.
At the time, it was believed that the dead remained in limbo for a time after death, and that prayer, even by strangers, could expedite a soul's passage to heaven.
The Jack-o-lantern custom probably comes from Irish folklore.
As the tale is told, a man named Jack, who was notorious as a drunkard and trickster, tricked Satan into climbing a tree. Jack then carved an image of a cross in the tree's trunk, trapping the devil up the tree.
Jack made a deal with the devil that, if he would never tempt him again, he would promise to let him down the tree.
According to the folk tale, after Jack died, he was denied entrance to Heaven because of his evil ways, but he was also denied access to Hell because he had tricked the devil.
Instead, the devil gave him a single ember to light his way through the frigid darkness. The ember was placed inside a hollowed-out turnip to keep it glowing longer.
Halloween grew out of the rituals of Celts celebrating a new year, and out of Medieval prayer rituals of Europeans.
And today, even many churches have Halloween parties or pumpkin carving events for the kids. After all, the day itself is only as evil as one cares to make it.