Halloween is pure "Walt Disney" and meaningless.
Samhain marks the first day of the Celtic New Year. It is celebrated on November 1. Most consider October 31 to be the Eve of Samhain.
Samhain is the "Feast of the Dead." The Celts would celebrate by placing food on tables to honor the spirits of the dead. On this night, the veil between the realm of the living and the realm of the dead is lifted, making communication with spirits easier. The Dark Mother- the crone- and her aging consort, the Dark Father (the god and goddess) were honoured on this night also. Pagans today still celebrate Samhain both to honor the god and goddess, as well as the deceased.
Celebrated in the northern hemisphere on 31st October, Samhain is the Celtic new year. It is also a Celtic fire festival. In the southern hemisphere this is celebrated on or about 30th April as it refers to the new year in terms of natures cycle NOT a date.
For our ancestors, this was a busy time, the flocks and herds were back from the hills and many were selected for the cull. These would be mainly the young male animals, the old, injured and infertile animals. The young and pregnant stock would be kept within for safety during the winter. Apart from butchering the meat, the feast would comprise the offal meats, which are difficult to preserve. There would be hides to tan, fleeces to prepare, salting, drying and smoking of meat.
Children would be able to go to any hearth to be fed, as the villagers would be taking turns with cooking and smallest childcare, for the normal life still had to go on. Here we see the earliest beginnings of the tradition of Trick or treat, as the children would be largely unsupervised and be up to all kinds of mischief.
The villagers would be gathered now, traders returned with news from the wider world, and in return they would learn what had been occurring in the village whilst they had been away, the births, accidents and deaths.
So it was the time to remember as they went within for the almost hibernation time of winter, when repairs to harnesses, tools, weapons, etc would go on during the months of short cold days. The children would learn by song and story, and the older members would tell the old tales and sing the old songs.
It was at this time that country folk would be considering how many of their animals they would be able to keep over the winter months, there was a need to ensure that fodder to feed the animals would last until spring when the livestock could be let out to pasture again, if there isn't sufficient fodder then the herds and flocks need to be reduced.
Following the cull there was plenty of meat available to be dried, smoked or cured for the winter and also enough for a feast. Because this was the time of the cull, death and rebirth are much on the mind. This is also the time to celebrate and remember loved ones who have passed onto the next level, it is considered that the veil between the two worlds are at their 'thinnest' and that our ancestors are able to draw nearer to us and join our celebrations.
http://youtu.be/fHkR7ihE9iQ