janjan5uk. Hello. Welcome.
I am sorry to hear of your loss.

Although nothing or no one has any concrete evidence of astral projecting, remote or distant viewing or any other form of mind travel does not mean that such a place doed not exist. We just may not know how to navigate are way there yet.
Some claim they have and do.
So I myself discount nothing.
My mother passed away and I was very angry at first. But one thing that can't be taken from me are my memories of her. This is what I tell myself when I have a dream of her and encounter the feeling that you describe.


You may want to get the book Ultimate Journey, by, Robert A. Monroe
Two of his other books include:
Journeys out of the body & Far journeys.