[It's the first she's heard of a world that has reincarnation like their own, but she doesn't focus on it. That's something to bring up with Korra later.]

Right now, it may be a matter of your word versus his. For what it's worth, I do think it'd be unwise to throw your words away when you seem to mean them so thoroughly. I don't know Melkor as well as Korra does, so it may also be easier for me to do that.

[But Asami isn't looking forward to broaching the topic with Korra.]