> "My late grandmother used to see dreams of passed away relatives long before she died, as in decades."

I am not a religious person but I can understand that. I am 66 yo and my father and mother are diseased since a long time. Yet sometimes I can feel a presence during day time and I had a few dreams where I discussed briefly with my mother.

It's easy to say that as I am shaking that this could be Parkinson's disease hallucinations but I am not so sure. Anyway I am not diagnosed with Parkinson's diseases and I take no drugs.

My pet explanation is that there are multiple universes and there are leaks between them.