"Wu was flying at full speed. You still managed to catch up?"
"I came here in the Avatar State."
"Ah."
At that, Kahn rubbed his temples in frustration and said helplessly:
"The Avatar State isn't meant to be used like that. So, are you determined to stop me?"
Aang asked in return:
"That's what I wanted to ask. Why are you so obsessed with killing Ozai? The Ozai you knew is already dead, isn't he? Do you hate him that much?"
The question made Kahn freeze for a moment. Then he broke into a surprised laugh and said:
"Hate? Perhaps. But I only recently realized that killing Ozai with my own hands was one of my obsessions too."
Naturally, he did hate Ozai: for his treachery and cunning, for dragging him into their struggle, for trapping him inside the Fire Nation, and more.
Beyond hatred, there was also his unwillingness to accept it.
To deal with Ozai, he had maneuvered by every means possible, tried every way he could to gather fighting strength, and drawn up meticulous plans. He could fairly say he had used every trick in his arsenal.
Yet on the very eve of his operation, Ozai had died so easily at Azula's hands, sending all his painstaking efforts and plans down the drain, even making them seem rather ridiculous.
Perhaps it was all those feelings piled together that had given rise to his obsession with "killing Ozai with his own hands."
Yes, he wanted more than Ozai's death. He wanted Ozai to die at his hands!
It was a purely selfish desire, unrelated to any greater cause, unrelated to right or wrong.
Aang counseled him:
"If you know it's just an obsession, why not choose to let it go?"
"Let it go? I don't think it needs