Some things we call supernatural may be quite natural with a different spacetime coordinate system. There are several stories int he Bible which illustrate this. Daniel Chapter five, for instance, tells us there is indeed a different spacetime coordinate system no further away from us then the length of an arm. I would share a few incidents from personal experience, but the ridicule factor is not something I enjoy this late at night.
And using ‘then’ where I should type ‘than’ is worthy of ridicule of my tired old brain.
“with a different spacetime coordinate system.”
Well, God is all-seeing and can see everything at any time. So it might be that isn’t something that is only obtainable by God, but that it just IS, and He has the power to tap into it? And every so office us mortals also can tap into a little bit of it? I don’t know. But most definitly there is a “supernatural” spiritual world. And sometimes it gets real close.
I’ve read where visits from loved ones may not be from God, but is Satan trying to trick us somehow. But I’m not sure about that. Heck - even Jesus believed in ghosts! “What you think I’m a ghost!? Stick your finger in the holes in my hands!”