What is your thinking around spirit possession?
This has been common knowledge through all cultures & times, and most have protocols that can deal with it.
In modern internet lore it seems to be negative only, but at least in the Tibetan tradition it has been highly organized, controlled and used for constructive purposes only.
Its not my intention to limit this to the Tibetans only, any takes are welcome, its just that this is perhaps the easiest example where there is actually something to show:
I also have something else to mention around this that perhaps belongs in the comments :-)