I'm beginning to think that eucatastrophe may be one of the most important elements of a true Christmas story.
When Scrooge wakes up and discovers that it's still Christmas morning and he can spread the joy of Christmas and make everything right before it's too late.
When the Grinch returns to Whoville and gives all their presents and decorations and the feast back to them.
When Kevin McCallister's family comes back home just in time for Christmas - not only his mom who's been trying so hard to make it back, but also the rest of them who had to wait for the next flight - and the old man gets his family back too.
And especially, especially, when George Bailey gets to live again, and discovers that everyone in town has been pitching in what they can to help him pay off his debts - and not just for the $8,000! Sam Wainwright gives him $25,000 and he's the richest man in town!
Eucatastrophe. It's so perfect for Christmas because Christmas itself is the beginning of the greatest eucatastrophe of them all.