"That's not how the Force works," Luke grumbled. "It's not a machine, not something you can engineer or tinker with. It's a living thing." But his eyes narrowed as he thought about it, gaze wandering off for a moment as he looked into the middle distance, seeing nothing. "We don't know what the connection is. To break it, or to put it differently, to shield yourself just from him takes finesse."

Thus far, finesse was not a quality he associated with Rey. Stubbornness, determination, and an ability to throw herself headlong into danger, yes--all of which he admired.

"Ben and Yoda were able to hide themselves because they were Masters. Even then, they had some help from... environmental factors. Still..." He re-focused on her. "I may be able to teach you to dampen your output. If only we knew what the connection was. What allowed it. Visions like that, over distance... It's not like anything I've ever seen before..."