Maybe...I mean, that's one possibility, for sure.

[He's had shared dreams, in the burning room thanks to the sleeping curse. But he's not sure that's what's happening here because that'd be a huge magical feat, right?]

I'm not sure who named it, but it's based on a fairy tale that's pretty popular.

And...real. Except this version of Wonderland isn't like the version I've read about.