I think our night terrors may not have been induced by emotional trauma at all. Maybe something really did come for us when we were kids and planted something in us and, whatever it was, it left a mark... just like that little girl's.
And now they're coming back?
Yes, and that's why the marks reappear! So that they can find us and take us back to the place in our night terrors... out of the light.
I know how it sounds.