You can imagine the blow... it can easily kill, that's why you use it rarely.
8 seconds sound clip from the Shaolin vs. Lama (1983) movie soundboard.
You can hear this line at 01:11:17 in the DVD version of the movie.
Quote context
[...]
- There is a contradiction to resolve here.
- If mercy is in your hearth and you truly have faith, you'll find your Kung Fu will improve rapidly.
- When your master died, he requested the chief to let you stay with me.
- The basic thing is to concentrate all your power into one point.
- You can imagine the blow... it can easily kill, that's why you use it rarely.
- Listen... softer, the better.
- You'll find it difficult to break it.
[...]