. I wondered about the dreams too....
1. Could also be a message that her mother is ok, and is happy and sane again in the afterlife, or of them reuniting in the afterlife, or maybe of her leaving the main spiritual world temporarily to keep an eye on Rosa and her mother showing approval and waving goodbye. Something seems to happen when Rosa wishes out loud that her Aunt was there....
6. Not in Unbound, but we know Jack and Maria die when Roseangela is still a baby, Lauren obviously was close to them, especially Jack, and they were her only family, along with Rosa. When they died they "passed over, leaving Lauren behind, she chases after them but "tripped and fell" perhaps when she recieved the bad news, the grief knocked her down for a bit..but she found new purpose in Rosa, which is why in the dream it's Rosa who helps her up. may also be why she threw away her life as a medium to focus so much on Rosa, despite Joey's concerns and protests.
9. No idea either...a reference to the Countess? I need to play the games again. But I agree that it seems that perhaps we just haven't seen what this refers to yet...
10....not sure but I have heard trains being used as symbolism for the journey to the afterlife before....
possibly the man was Joey? although I am unsure on this point too. while it was obvious Joey was in love with Lauren, in Unbound I felt that Lauren felt more of a strained friendship towards Joey. She was saving the spirits and accepted her task as a medium (unlike Patricia who went into denial and refused to even acknowledge Joey)..but Lauren still wasn't really happy about it...she knew it wasn't Joey's fault, but as much as they got on I felt there was some resentment that she had been forced into the role, and had her life decided for her, at least until later when she began to ignore her calling with eventually tragic results.
but maybe, between Unbound and her being driven insane, she grew to like Joey in the same way..even if like him she didn't acknowledge or admit it. Even when she stopped helping spirits, I don't think her madness happened instantly, and even when she had her breakdown and did go mad, that doesn't mean a part of her wasn't aware of Joey's presence, and dying probably alleviated her of the madness anyway. As a lucid spirit, Lauren was free and obliged to move on, but Joey is still bound to his medium, and with Lauren's death that switched to Rosa...he could not follow or stay with Lauren anymore. I know the immediate afterlife isn't portrayed as a train in the game...but it was a dream, and they can often be symbolic rather than literal.
I think Lauren may be closer than either Joey or Rosa think though, even if she is not visible and only able to observe most of the time, It's been awhile since I played but I remember in Convergence Rosa asked her Aunt for help when she was in danger and scared, and the picture flashed/moved. Could also be why Lauren had the dream of a pink room, and of events and meeting people that happen in Rosa's cases as a medium.