Gatherings and feeling presence then seeing them

[Molly]

Sometimes I dream of social gatherings or meetings. A while back I dreamt of walking past a social gathering, that I used to be part of. Another I woken to, became aware, when the dreams becomes different, real, as I was then present at a social celebration of someone I used to know. Some time later I checked and there had been a celebration in real life. I know I was not aware of it datewise but thinking subcounsely my brain did the math? I dream too of random People showing up after I first am feeling they are there but when I do see them the others in my dream are not acting as if they too see them.