O Oriens, splendor lucis aeternae, et sol iustitiae: veni, et illumina sedentes in tenebris et umbra mortis.
O dawn of the east, brightness of light eternal, and sun of justice: come, and enlighten those who sit in darkness and in the shadow of death.
Christ is sometimes imagined as Apollo, the bringer of bright sun-fire, but I imagine Christ as those fuchsia streaks anointing the darkness with chrismic light.
Today was also the winter solstice in the northern hemisphere, the darkest day of the year. On this day I think of John the Baptist, whose feast day is six months prior to this day, on the longest day of the year (in the northern hemisphere). It's the day when earthly light prepares to diminish, the same way John prepares: "He must increase, but I must decrease" (John 3:30).