Zuko is officially on his own. He left, letting his Uncle Iroh not have to deal with his irresponsibility any longer. He hoped away on an ostrich horse onto the open land of the Earth Kingdom. Now he’s left with his own thoughts. His own thoughts on his heavy generational trauma , his mother, his father, his sister, why he’s chasing the Avatar, his childhood, his scar, the war, and his own isolation. All he can do now is think. All he can do is process what he has done and what others have done to him that got him to this place. This is him venturing, attempting to find himself on his own.