Poppagator:

To me, it's mostly about peace and love, poultry and alcohol. I'm sure that my pre-Christian Yule-celebrating ancestors would agree.

Well, if your ancestors were from the lands of the Norse (and possibly Celts), there's a good chance that pork would stand in for Poultry... The wild boar being the creature that pulls Freyr's chariot, and from whom, it is said (don't ask me who said it -- just a vague memory from a high school Latin class), humans got the idea to start plowing the earth.