Her request to learn Spiritbending from Kahn was not a passing whim, but the result of a discussion with Tenzin.
Thus, after Korra spoke, Tenzin followed up:
"Master Kahn, here is the situation. After my father Aang passed away, we no longer had a qualified Spiritbender on our side, so Korra has never had a Spiritbending teacher."
"Our original plan was to teach Korra to connect with the souls of her past lives, so they could teach her Spiritbending, but for some reason, Korra has never been able to establish that connection."
Korra looked dejected at this.
Ever since she was little, she had been able to use fire, water, and earth Bending, and had once been considered a genius, yet she had never managed to learn Airbending or contact her past lives.
"Unable to contact her past lives?"
Kahn was somewhat surprised to learn this.
Contacting past lives was an ability unique to the Avatar, though technically, it also fell within the scope of Spiritbending.
For the Avatar, this was a relatively simple ability, because every one of their past lives was preserved within their own body.
Generally speaking, the Avatar contacted their immediately preceding incarnation most often. During the current Avatar's active years, the influence left by the previous Avatar had usually not yet faded, so they could seek that incarnation's advice on many real-world problems.
Any further back, however, and things became rather unfamiliar.
After all, although they were strictly speaking the same person, they were also different individuals.
Aang often spoke with his previous incarnation, Avatar Roku. Logically, he should have become Korra's guide just as Avatar Roku had been his.
But Kahn had not expected Korra to remain unable to contact Aang even now.
Was there some reason for it?
However, with so little information