The phenomenon of Christmas, as it exists today amongst moderns, is largely a commercial platform to sell you movies, toys, electronics, and honey baked hams. We sing about snow and various foodstuffs eaten and herd animals, we share some presents, spoil our children, and eat a lot of food.
To most modern people, this is what it's about. Its about time with family and the magic of Santa and having fun singing Christmas songs.
I don't think modern people really understand Christmas. I don't think they get it.
To explain Christmas, then, let me begin with a quote by Richard Feynman (from this video interview):
I can’t believe the special stories that have been made up about our relationship to the universe at large. They seem to be… too simple to conn- too local, too provincial! The Earth! He came to the Earth! One of the aspects of God came to the Earth mind, you. Look at what’s out there! It isn’t in proportion.Richard Feynman gets Christmas. In his own way, as a nonreligious Jew, Feynman understands the celebration of Christ's birth better than most people alive today.