after they're gone

So ever since Meredith drowned, and she was greeted after the elevator by a bunch of significant people in her life, I've wondered if that happens to other characters who die on the show. Like when Jackson and April's baby dies, he is greeted by Mark and Lexie, and a bunch of other important people in his parents major concept of this theory is that before the dead person gets off the elevator, all the people appear at the end of that tunnel. They see each other and try to figure out who died based on who they have in common. So when Derek dies, people from the hospital like Mark, Lexie, and George appear. But that doesn't lead them to anyone specific, it could be anyone who worked at the hospital with all three of them. Then more and more people show up, but Lexie and George, ever the innocent naive ones, never figure it out. That pregnant lady, that Derek operated on, the one who caused him to go and drink in the woods appears, and Mark figures maybe it was one of her doctors. Maybe it was Derek. Then the man who shot him, the shooter in season 6 I think. So they all know it was someone who worked in the hospital for a long time, someone who maybe was shot by him and survived. Lexie and George ponder if it was Alex, because he was working with Addison I think, on her baby. Then Ellis Grey appears and all three look at those elevator doors and assume the worst. They assume that Meredith has died. But then one more person appears, and Lexie and George don't recognize him. But Mark does. And he immediately knows that when those elevator doors open, Derek will walk out and be dead. Because that final person was Derek's father, who was shot and killed when he was younger. And then when those elevator doors open, and Derek is visible to all those people who played a significant part in his life can see him. But he does not leave the elevator so quickly as Meredith did when she gave up and drowned. He fights it, he looks up and sees those people, those dead people and realizes where he is, and fights it. He pushes the button to close the doors and go back, go back to his wife and kids and all those who live who he still loves. But his best friend living and dead walks forwards, down that long hallway and pulls him out of the elevator and hugs him. He realizes that he can't go back. He will never be able to see those he loves who still live again. He looks down the hallway at his mother-in-law and hears her immortal words, "The carousel never stop turning," and stops fighting it. And moves on.