Post #1423779

You have to tap into the dark side to sense the secrets the blade holds. (Which is why it’s important to not have the sith whispers until after we find this out.)
Why would Rey internationally do dark side things out of nowhere? She doesn’t know how to get it to work until they decipher what it says, and so she then taps into the dark side and sees Endor. And that ties into “the quick and easy path” as Yoda calls it. Rey is slowly giving into the dark side.