Christmas brings out the best in people, except when it brings out the worst. I don’t know all the reasons for why this is, but I’m guessing that there is something about “the holidays” that exposes feelings.
Most people have feelings. Some have only a few, but, still, they can actually emote now and then (Note: to emote is to be emotional, not to shed one’s skin or feathers; that’s molting, which is entirely different).
I think that stress has a role in bringing forth feelings. Maybe people try a little harder. Or, maybe they have little left in their emotional tank. Empty tanks are hazardous because of the fumes.
Expectations can be incredibly unrealistic during Christmas. Even the music can suggest the possibility of failure, as in, “I’m dreaming of a white Christmas … if only in my dreams” (this is a real song; a really, really old song. Google it.).
I want to propose that another reason the holidays can bring out certain feelings has to do with spiritual things. There is a spiritual dimension to Christmas because of Christ. It was, and is, a very big deal.
Scrooge was the Charles Dickens character who said, “Bah, Humbug” about Christmas in A Christmas Carol. The Devil, who is way more mean and grouchy than Scrooge, really hates the notion of the birth of the Savior.
It ought to feel good to celebrate Jesus’ birthday, even if your name is Scrooge.