All Hallows Eve, Halloween, is the day when the dead are said to walk amoung the living. It is also a day that is good for making psychic or spiritual connections.

Typically in Autumn, when the "dying" season begins, is a time of reflection and thought for those who have passed away. In Northern Britian, the words ghost and guest (giest) are the same. In isolated Celtic villages, the dead relatives skulls were painted, therefore allowing them to rejoin their families during the October feasts. Halloween is celebrated in many ways through various other cultures, everything from dressing up to wander the night with the dead, to children going door to door for candy. In the United States, communicating with the spirit world is Celtic descended, while the activities descend from the British Isles, include partying and nighttime mischeif.
In the 19th Century, the parties were play acting and costumes and some fortune telling. While in the Victorian Era the tradition of bobbing for apples was revived. Other parlour games were also played such as biting a doughnut that is hanging from a string.

These are of course only a few of the traditions that are carried out by different cultures of people. All in all, Halloween is a day of remembering our relatives who aren't with us anymore, and a beginning to the winter or dying season.