Random Observation Time!
So we all know that the Avatar's friendships can last more then one lifetime (their relationships with the Fire Lord being just one example) and often feel an strong sense of familiarity when shown something that belonged to an previous life (choosing the same four toys, Korra recognizing Wan's teapot etc.)
I bring that up because of a theory I have about the Warriors of Kyoshi. In that episode, Aang gets an ego from all the attention the Kyoshi Islanders are giving him, but what if it wasn't just Aang liking the celebrity lifestyle? What if Avatar Kyoshi herself was drawing Aang to the Island?
Sokka: You have no idea where you're going, do you?
(Scene cuts to a wider angle of Sokka, Katara, and Aang riding Appa through the air.)
Aang: (turning his head back to answer Sokka) Weeelll, I know it's near water...
(Scene cuts to a distant view of Appa flying over an endless stretch of water.)
Sokka: (flatly) I guess we're getting close then.
When the episode starts out, Aang literally had no idea where the Island is, but still finds it anyway, probably due to "Avatar Stuff."
And later, Aang and Katara have this argument about leaving Kyoshi Island.
Katara: (continuing to pick up vegetables) Watching you show off for a bunch of girls does not sound like fun.
Aang: Well, neither does carrying your basket.
Katara: It's not my basket. These supplies are for our trip. I told you, we have to leave Kyoshi soon.
Aang: I don't want to leave Kyoshi yet. I can't put my finger on it, but there's something I really like about this place.
Of course, the "Something" that Aang liked so much about the village was getting treated like royalty, but I wonder if it was also subconscious feelings of nostalgia for the Island, Avatar Kyoshi's strong love for her home and people that were compelling Aang to stay in town.
And remember the group of girls that Aang spent the day playing with and teaching about Avatar Kyoshi?
The ringleader of the kids that Aang made friends with was a girl named Koko, who shares a name with Kyoshi's own daughter. Again, was it the celebrity attention or familiarity?
Lastly, we later learn that Aang just wearing Kyoshi's outfit and warpaint were enough to summon her spirit to the physical world.
Of course, I'm probably reading too deeply into what was suppose to be a lesson on humility, but I just think it would be interesting if it was the Avatar Spirit's connections to past lives beyond Aang and Roku's bloodlines that were driving the episode.