As a society whose middle (and above) classes no longer live next door to our extended families, it's a time to reconnect with kith and kin, to catch up with their happenings and observe with sadness the inevitable decline of age. Keep smiling, feast heartily, and try to avoid arguing politics with the inevitable scattering of liberals among them. Too soon it will be over, the car packed and we will all have gone back to our workaday lives.
Have a Very Merry Christmas tomorrow, and a good visit with the friends and relatives.