system
A chat on 4chan
human
I work in maintenance at some old hospital complex.

I get into creepy empty places at night all the time and I've already seen shadows, lights, orbs, heard disembodied voices, moving forniture, opening doors...

At this point I'm not sure there is explanation for it all
gpt
>Ghost explanation
They are just beings that have a different vibrational frequency; not necessarily dead people.

>Mind Trick explanation
There's probably old metal pipes or hvac systems in the building vibrating at a certain frequency (forget the exact hertz) which can induce hallucinations and give us creeped out feelings