Masashi Kishimoto said this quote

Now there's something I understand a little better. Hate, sadness, even joy. to be able to share it with another person...Naruto Uzumaki from fighting him i learned that. he knew pain like i did and then he taught me that you can change your path. I wish that one day i can be needed by someone. Not as a frightening weapon...But as the sand's Kazekage.