Avatar: The Last Airbender, Book 1: Water

Yue:
The legends say the moon was the first waterbender. Our ancestors saw how it pushed and pulled the tides, and learned how to do it themselves.

Katara:
I've always noticed my waterbending is stronger at night.

Yue:
Our strength comes from the spirit of the moon, our life comes from the spirit of the ocean. They work together to keep balance.

Aang:
The spirits! Maybe I can find them and get their help!

Yue:
How can you do that?

Katara:
The Avatar is the bridge between our world and the spirit world. Aang can talk to them!

Yue:
Maybe they'll give you the wisdom to win this battle!

Aang:
Or maybe they'll unleash a crazy amazing spirit attack on the Fire Nation! (he looks at both Yue and Katara) Or wisdom. That's good too.