Well Ringtail, back in the nineteen-eighties a lady who had some psychic connection with me in the field of angel magic wrote an end-of -the -world kind of book with the words 'advent calendar' in the title. Since then I've used advent calendars symbolically a few times. One time when I did it the shop assistant who sold me the advent calendar said some pretty weird things right there in the shop, but I don't remember now what they were. I believe that magic is like a building- you found it on structures from things that happened earlier on in your life and keep on building up, so that's why I still sometimes use advent calendars.
The idea with Coniunctio is that I will open up a link to him/her by opening the door with the sigil on it on the winter solstice, the 21st, and I'll include a little ritual of some kind. Then I'll leave the other slots closed, because Christmas and the winter solstice are rivals and alternatives to one another. I've got nothing against Christianity or Paganism, to some extent I like them both, but they don't like one another, if you see what I mean, and Coniunctio belongs more to the Pagan side.
I'm adding a little 'in real time' excitement to this by posting about it just before the solstice date, and if anyone wants to join in please do.