I didn't think it would, but ... have you ever been in a dream like that before?

[Keith's experience differs from a lot of other people's, but he remembers being in Honerva's mind pretty clearly. It helps that it just happened to him.]

I had a feeling that as long as the world didn't respond to us in there, we'd be fine out here. That's because it worked that way before.

[And by "other people's," it means he doesn't entirely Get It. But he knew that he'd call upon Voltron to help either way.]