I think visions and dreams (real or otherwise) are somthing rhat we as humans can only grasp at straws to understand. If you look at the other predictions shes had they haven't played out exactly how she said. Wich could indicate she's making it up(not on purpose she actually believes em) or that you can only make so much of a guess based on what you see. I think the hikers won't survive but the search party for them is how they'll be found. Also I think that the girl who keeps going to cave(can't remember name) is gonna die in that cave from over use and toxic inhalation.