My uncle, who recently died, was in an odd dream I had... what does it mean?

You had to relive his death I guess because you couldn't cry. It sounds bad, but maybe your Uncle needed to see you, and witness the departure because he didn't get to. My beliefs: Since everyone's future self can visit people in dreams of now, it is powerful if they recently died. Though everyone else you see has died too, but they look young/old according to the theme perhaps. So the astral bodies can visit you in dreams from another dimension- heaven/limbo whatever. Though recent deaths are naturally emotional because death isn't funny when it's really there. In other words, time travel exists in the afterlife witnessed in dreams. That's how fast spirits can travel, like in light years. How else would we go to other worlds/heaven/ galaxies?