"We're not sure. I didn't intend to be a ghost, and our galaxy doesn't have very many."

"You have a whole galaxy? Wow!"

She smiles fondly. "Not all of it's explored, but we've mapped thousands of planets by now."

"We just have this one!"

"We do sometimes meet planets who've never encountered aliens."

"You don't look like aliens, you look like humans! Except for how one of you is a ghost."

She laughs. "Humans and near-humans are very common! We're not entirely sure why, actually."

"Are there people more like Lily on Earth, then?"

"Yeah, almost everybody's a human! Mama's a vampire and I'm a half-vampire."

"Huh! How are vampires different?"

"Vampires're faster and stronger and colder and tougher and drink blood and don't have heartbeats and they're venomous and also they are ruled by the vampire shadow government!"

"Shadow government?"

"They're called the Volturi and they're bad and if you're a ghost they'd probably think you're their business too."

"Yeah lots of governments seem to think that about Master Anakin."

"How are they bad?"

"Well, they kill people."

...Ugh.

(She thinks, but doesn't say, 'So what you're saying is that they're a government.' Probably she is just in a very cynical mood and the galactic governments are just trash fires right now and normal governments in fact get up to less mass murder.) (Cynical moods can distort your thinking, so she should of course be on the look out for that, but also given her standard references for 'government' are currently 'the evil one' and 'the one with a functioning propaganda department,' it's possible that most people in the galaxy aren't cynical enough.)

"Why do they kill people?"

"Mostly to eat but also to keep vampires secret."

Okay yeah that's bad. 

"Do vampires need to eat people?"

"No, nice vampires eat animals instead."

She nods. "Why are vampires secret?"

"'Cause the Volturi say so. And because maybe humans would try to hurt vampires or something if they knew."

"Is everything that isn't standard for normal humans secret?"

"Yeah. There's also werewolves and witches. Mama and me are witches, which means we have extra powers on top of just not being humans, mine is the projective telepathy one."

Huh. They don't feel Force sensitive.

" - Does 'humans react poorly to powers' seem to be actually universally true here?"

"No but there aren't that many times when people've tried because of the Volturi."