(Yue asks about what Sokka saw in Spirit World...)

Sokka: It was something that happened when I was a kid. I overheard my dad saying he was disappointed in me. That I wasn't cut out to be a warrior. That he didn't believe in me.

Yue: Do you know what I remember about you from the Spirit World? You were worried about your friends. You knew they were in trouble, and you had to help them. Your heart. That's what sets you apart. That's what makes you a warrior. I have a feeling if your father saw you now, he would agree.