People don't show up at 3AM because someone moved in and they threw a fit. That's like an 8PM activity at the latest.
In this place of words, words are all we have. But so it is throughout, is it not?
Madness string 93679
Similar burial ceremonies developed in different places independently throughout human history, which is a good hint that it was not just a random fluke that we kept doing by chance, but that there must be something 'natural' to this behavior.