I do think it's a little weird that things like the base aren't present in the dreamworld when everything else is similar enough, but... [ It looks like it accepts the things in people's memories, and that's fine. ] Everything on this planet is incredible. [ Even the things in the Void that may want to kill them... and otherwise. ]

No, that makes some sense, that you'd be some kind of spiritual if your mind was on air's wavelength. [ Hotaru did notice the shadow that crossed Korra's face, but it's not a topic she knows how to broach. She doesn't want to step on anything sensitive, so she hesitates even if it is super interesting to hear about how other worlds are. It's like reading, but it's reality. ] You sound like you like your teacher a lot.