Ok, i wanted to make sure that the appearition was completely random. After you had 5 children in the temple.
If I wanted, I could have done it in my current save. But I didn't want to miss the quest: Spread the Good Word. Which I don't have in the other save. But which I did have in my super old save. So I reloaded a backup from a couple of hours earlier. I just had to redo two or three small quests in the goblin area. Because the three ladies in the temple needed four days to give birth to their new babies. So i took the opportunity to repeat the same steps I'd done in the other save.
So when the 20th day arrived, the three ladie give birth. I had again

7 children. 6 if I don't count the first child Alice gave birth to. So i had to sleep. It's automatic, the apparition appeared for the first time. Since I had five or more children in the temple, anyway. This is where the hard part of the journey came. Because, as Damagus01 here says:
The 5+ children must be conceived in the Temple. Alice's first child does not count for that.
The apparition in the hallway is separate (and earlier) from "For The Cause," foreshadowing later events.

The apparition appearing by your bed is,
I believe, a daily chance once the prerequisites are met rather than automatically when you sleep at the Temple. It can take a while for both times to happen. I believe the second time also has to happen on a different day than the first one, try that if you haven't done it already.
I can confirm that the first time is automatic. As soon as you have five or more children, the apparition occurs.
But it becomes difficult the second time... To make the apparition appear a second time, well, as I said and as Damagus01 believe,
everything becomes random. The only important thing, however, is one: it must obviously be a different day.
After that, you can save in front of the bed. Sleep and hope the apparition arrives. If it doesn't, reload the save and try again. Alternatively, try sleeping and use up more than one day. In my case, the first time I tried, i sleeping for almost 10 days. But nothing. I reloaded the game and tried again. Another 10 days and still nothing. In the third case, on the 2nd day, this time the apparition appeared. And when I went to talk to Ziva, she gave me the quest: Spread the Good Word. I'd missed in the other save.
Randomness is really a bad thing, guys. I hope Tinkerer fixes this. After all, once you have five kids, I don't see why it has to be so random. At least now I can move on with the other quests. Because they won't be blocked by the apparition. Since many of them require the apparition to appear twice at the foot of the bed...
Moving on, new advice

I hope Tinkerer adds more new armor to the protagonist, aesthetically speaking
Sad that the dragon armor doesn't change the aesthetic

I don't know how many of you noticed, but outside the mill in Weirdwood, there's a knight in white armor with gold embroidery and a blue cape. It would be nice if there were two variants, a white one with gold embroidery and a blue cape and a black one with gold embroidery and a red cape.
Both variations would be cute without the helmet. As cool as it is, I think it's more stylish to see the hair blowing in the wind
