Erica: (talking to dr. Naadiah after being in a hallway of memories with Leo from where he doesn't want to go) Leo, he's trapped, and I have to go back there and I have to help him!
Dr. Naadiah: He'll leave when he's ready, Erica. He's... he's not trapped, not in any physical sense. Leo is free to leave that hallway whenever he wants.
Erica: No, but, Dr. Naadiah, that's just the thing! He doesn't want his life to be over, I mean, he's doing everything that he can to hold on!
Dr. Naadiah: You're misunderstanding. He's not resisting the end, he's resisting the beginning.
Erica: Of what?
Dr. Naadiah: Of whatever comes next, whatever's on the other side of that door.
Erica: And what's on the other side?
Dr. Naadiah: I don't know. No one does. Until you walk through it. And Leo will, Erica, he will when he's ready.