I used to have a habit of extended fasting during the Holy Nights. I would fast for ten days between Christmas and New Years though never all the way through to Epiphany.
I have no special Christmas traditions beyond worship as my own family does not do gifts or gatherings. I prefer it this way. Quiet suits me now.
Advent is a season for reflection on the cycles of life. For me the time between Christmas and Epiphany is a rare season. Some consider it a liminal time or still point where the veil between physical and other realities are thin.
Holy Nights can be thought of as a still-point in earthly rhythms as we transition from Christ’s Birth to Epiphany. Northern European cultures call it this time the Raunächte or “rough nights” similarly it represents the thin point between worlds.
There are many traditions associated with this time. Cleaning and cleansing and warding off bad or unwanted energy, the paying off of debts and reconciliation as well as rituals of burning, cleansing and smudging. It’s a time for introspection and reflection.
I’ll likely meditate and journal as normal perhaps with some divination exercises. I enjoy any excuse to pull tarot cards and toss a Nordic rune.