You find, after a journey, that are not the person you used to be.
War changes the children of every nation
Character progression through the series:
Sokka at the beginning: Young boy trying his hardest to be a soldier and protect his people.
Sokka at the end: Brave, capable and trustworthy soldier.
Zuko at the beginning: Banished prince trying to capture the Avatar.
Zuko at the end: New Fire Lord on the path of building a better future for his nation and the world.
Katara at the beginning: Young waterbender trying to master his element without any help.
Katara at the end: Waterbending Master.
Aang at the beginning: Goofy kid who likes to go penguin sliding.
Aang at the end: Fully realized Avatar.
Topt at the beginning: BADASS MOTHERFUCKER
Topt at the end: BADASS MOTHERFUCKER WHO CAN METALBEND
(via bleedingwillow96)