Very good episode. I bet Naga hugs are the best. That was a great scene. OMG, they referenced Kill Bill. The only way this could have possibly been made that even better would have been to follow that up with an 80's training montage set to music by Vince DiCola.
Don't pretend you don't think that wouldn't have been awesome.
I love that picture of Aang. It's nice to see he could still be a goofball as an adult.
It was nice of the spirit to assume a cute form Korra would accept. A white puppy that resembles Naga was the perfect choice to help Korra. It's also nice to see that Korra isn't insane. I was thinking the spirit attacking Korra might be a weakened Vaatu attacking Korra while she is also weak, but then it led her to Toph. Maybe it is Rava after all.
This was one strange, long struggle and journey for Korra, and this episode did a nice job of explaining what Korra has been going through these past three years. What a way to end the episode, by Toph calling Korra "twinkle toes". I'm kind of wondering what nickname she'll actually give Korra once she actually gets to know her. "Thunder foot" would be a good choice, as Korra is rather known for her tendency to stomp rather than walk.