King Bumi: Listen to me Aang, there are options in fighting called Jing. It's a choice of how you direct your energy.
Aang: I know. There's positive Jing when you're attacking and negative Jing when you're retreating.
King Bumi: And Neutral Jing, when you do nothing.
Aang (surprised): There are three Jings?
King Bumi: Well, technically there are 85, let's just focus on the third. Neutral Jing is the key to earthbending, it involves listening and waiting for the right moment to strike.