Straight from wiki although not very accurate, but close enough. “The ancient Celts believed that on October 31st, now known as Halloween, the boundary between the living and the deceased dissolved, and the dead become dangerous for the living by causing problems such as sickness or damaged crops. The festivals would frequently involve bonfires, into which the bones of slaughtered livestock were thrown. Costumes and masks being worn at Halloween goes back to the Celtic traditions of attempting to copy the evil spirits or placate them, in Scotland for instance where the dead were impersonated by young men with masked, veiled or blackened faces, dressed in white.[8][9]”
Anyone who knows about Paganism and Celtics would understand how it would be considered religious, but I don’t wouldn’t quite agree with that statement either.
Another a different note. I myself love All Hallows’ Eve (Halloween) & it’s always been my favorite holiday, but X-mas is not as good as it used to be. When you were a kid it was great, but now that I’m out on my own with very little friends…. It’s just another day. I’m not really bothered with “in office” or whatever decorations, but it does make me a little sad that I can’t enjoy the “holiday spirit” with people whom I feel special toward.