This practice is the basic one.
5 seconds sound clip from the Frozen movie soundboard.
You can hear this line at 00:50:41 in the DVD version of the movie.
Quote context
[...]
- Speed, balance, weight, that's right.
- Leave.
- This practice is the basic one.
- You aim to keep the water flowing down after carrying it up.
- It's important not to break the flow.
- Now always keep arms level. Shoulder straight.
- You'll have to carry the water for many days to build up your arms.
- Sir.
- I never would've suspected that the boy would develop so quickly.
[...]