As a teenager, between 17 and 19, I did too much cannabis and magic mushrooms
[ 1970s south west England, playing in a band - what would you expect]

So who knows what state my Brain's been in ever since...???

I am naturally maintaining a line between scepticism and open mindedness,
and have passed off any 'weird' personal experiences as very vivid lucid dreams..

.. apart from 3 that deeply affected me..

The one I'll mention involved me being in some kind of possibly European village, sometime in the not too distant past...

I was amongst a group of ordinary folks being rounded up by thugs with guns.
They then started executing us.
I saw and felt the real fear of the revolver being aimed at my forehead.. then nothing..
I woke up extremely alarmed, almost in a state of deep shock !!!

That was one traumatic vivid lucid dream, that seemed way beyond 'usual' experience...??? 😰

I would never claim it as 'regression' - but could entertain the notion that some kind of dream states
may tap into an unknown channel of communication between 'parallel dimensions', or minds past, present, and maybe future...???

Ok.. so I also read too many sci fi fantasy super hero comics as a teenager....