My father, who I think is more autistic than me, had a dream once where he met his dead friend standing in front of a brick factory building. He said hi, that he hadn't seen him since he killed himself, how was he doing, did he work there? The friend said that yes, he worked there, he was doing fine, and they talked some more and my father woke up.
My father also had dreams of his dead parents in different places... his father was a kid again, the same age as he was when he was in World War II, and his mother was in her 20s again. They were separated... the only reason they hadn't divorced in life was because divorce was looked upon as shameful...
I had a dream once where I went into a cafe or restaurant sort of place, looking out on a lake or ocean or sea. It had little round tables draped in white tablecloths. There were bathrooms. A bunch of people came in and sat down at the tables. They were mostly men wearing suits. There may have been a few women besides my grandmother. A woman in her 20s, wearing a 1920's-style short white sparkly dress, with her hair piled on top of her head and a string of white pearls around her neck, came over to me and stood in front of me. We talked, she said something that suggested we had met before, I was confused and asked what was going on or who she was or something, she said "Don't you recognize me?" and then she aged, got wrinkles and that and I recognized her as my grandmother. She then turned back into the young woman. We talked, we sat down at a table and talked some more. I complained to her about all my problems. I had to cry periodically and went up to go to the bathroom... it was a nice clean bathroom. I looked in the mirror and saw that I looked upset, but I didn't want to go anywhere, I wanted to stay where I was. I always went back to her, we talked some more... then the place closed and they all had to go. They let me stay in there for a while. There was a switch that moved around this triangular enclosed-balcony-eating-area sort of thing. I played with it, alone in the darkened restaurant, turning the proch around... then I sort of slowly woke up; I don't know what happened between then and me waking up but something did... just this gentle "you have to go now" feeling...