- Segmented moves avoid double heavy. Why? When we only move one part at a time, there is something else not moving. The two parts are not moving at the same time, and therefore, it is separated. Separation means no double heavy. It can be "moving hand and not moving waist", or "moving waist and not moving hand". By "moving", I mean to move from Point A to Point B.
- That's why we perform our yilu in a robot fashion, in order to train the ability to move any of our body parts at will without affecting another part that shouldn't be affected in an involuntary way.