It seems like Kieran Healy’s The Dead of Winter only gets more relevant, and lovelier, with every passing year. You should click through and read the whole thing, so that you have context for the concluding lines:
A society—a civilization, if you like—is a hard thing to hold together. If you live in an agrarian society, and you have only stone, wood, and bone for tools, and you are on the western edge of Europe, few times are harder than the dead of Winter. The days are at their shortest, the sun is far away, and the Malthusian edge is right in front of you. It’s no wonder so many religious festivals take place around the solstice. Here were a people, more than five millennia ago, able not only to pull through the Winter successfully, but able also to build something like a huge timepiece to remind themselves that they were going to make it.
Merry Christmas, and a Happy New Year.