She was glad to see that Luke was in a better mood, and she breathed a little more easily as a result, giving his hand a gentle squeeze. His question, though, made her remember what they'd originally been doing, and why she'd asked to learn more about it, and Rey tried not to think too hard about Kylo Ren, not after she and Luke finally seemed to be on better terms.

"Communicating?" she replied simply. "Just... being able to see and hear another person despite distance and not knowing exactly where they are?"