The Veil is said to be something the prevents us from seeing what is on the other side. It separates the physical world from the realm where ghosts and demons dwell. It is during this time of the year that the Celts believed the veil would grow most thin and the demon Samhain (sow-en) could be called upon to summon spirits from the other side.
This is the time of year when the nights grow longer and the earth prepares to slumber as it withdraws from a time of growth and fruitfulness. As a time of plenty, trick-or-treat -- a chance to reap sweet treats before the lean months of winter -- our traditions center around the harvests of autumn. So, on this All Hallows Eve, I wish you fruitful harvest - and save me your peanut butter cups! They're my favorite!