One part of the body always likes to follow the direction of movements of other parts of the body. This will cause tossing and collapsing. If you observe people practice Taijiquan, you will notice that this is a very prevalent problem.
When one’s own body parts follow each other, there will be no possibility for rotation in the body.
The cloud-like moves usually are the result of the mistake. It is something to be circumvented, not something to be desired.
Originally published Nov 2007