Tomorrow the tilt of the earth and its long-standing relationship with the sun will result in the onset of winter. Humans have known this for a long time, because the darkness of night reaches its longest duration.
Where I live, the moment the sun shines right over the Tropic of Capricorn will be in the daytime, just before lunch, but I’ll mark it with a bright fire and warm drink when darkness comes, well before supper.
And I’ll look up, as I don’t do often enough, to notice the night above and all around, that has diminished in our age, giving way to the brightness of the many shiny and glowing objects, symbols of our prosperity and consumption.
Use this day as a chance to turn out some unnatural lights and let the darkness in.