Rey needs Luke for her training…
Why would she need any training? She’s invincible.
She sure is
EDIT:
Wish I could have found a higher quality gif but she was pretty invincible here too. Yahweh would be destroyed if Rey even so much as glanced in his direction.
Funny, cuz her getting flung a quarter mile through the air and slammed into a tree without injury…well…it kinda makes her look…oh, I dunno…
EDIT: you know, watching this on a loop really brings home that TFA’s over-the-top, cartoon physical treatment of the characters is very out of keeping with the SW Trilogy, which never blithely submits its characters to such consequence-free abuse. Luke is positively agonized by a washing machine hitting him in the shoulder in ESB, while Squirrelface here is flung around like a love doll, and it only makes her madder.
You know where that stuff does happen, though, a lot?
The prequels.