I don1t believe in witches

I don't believe in witches but...
On the 31st of October many people in England, in the United States, and even here in Brazil prepare to celebrate Halloween, on the witches’ day.
What is Halloween?
Halloween has a pagan origin, dating back to Roman’s and Celts’ times. The Celts worshipped the god of Death, Samhaim, and the Romans worshipped Pomona, the goddess of the Gardens and Orchards – that’s why Halloween colors are black and orange.
Many years late, in England, groups of farmers used to go from house to house to ask for food on that day. It was meant to bring good luck to the donators. This gave origin to the “trick or treat” tradition: groups of children dressed like witches and ghosts go from door to door to ask for sweets. If they don’t get their treats, they play trick “haunting” the people at the door.
In the United States another tradition is famous. Houses and schools are decorated with pumpkins with candle inside. This became a symbol of Halloween.