I can't speak to whether the second person's reply is accurate, but it sounds just about right for the ancient world.

I mean, if you didn't understand PTSD or even mental health as a thing, and if you pretty much had to turn to the supernatural since nobody had scientific explanations for jack shit back then, it makes sense that your first instinct would be ghosts.

Boggles my mind to think of how scary and magical the world must have seemed before science took away so much of the mystery. I barely understand magnetism now (InsaneClownPosseMeme.jpeg). Of course everyone thought they were blessed rocks. Can you even fathom what you'd be thinking back then if your town, which had been around since recorded history, suddenly got annihilated by a flood? You'd be looking sideways at N'gallah for committing adultery for sure.

Think of how insanely brilliant and brave scientists had to be early on to go against everything that everyone else thought was obvious.

This is such an interesting perspective on ghosts and their prevalence in history across the world. Reoccurring violent dreams or anxiety and fear in the middle of the night from PTSD would make sense.

Or maybe PTSD is caused by angry ghosts. Porqué no los dos?

Not sure we can dismiss the Sumerian theory for PTSD here

So then, presuming that they were killed in the desert, basically just another phrase for "desert demons"? :-P