Taijiquan is considered a manifestation of a person.
There is no such thing as a good or bad quan but how the quan is brought about by an individual, and that is effectively determined by the person’s mindset. When the deeper realm of practice is reached, Taijiquan is a discipline that is hard to describe in so many words.
The discipline has many rules but paradoxically has no absolutes.
Practice should be an organic and cohesive process. Its potential functionality and effectiveness is cultivated through sorting, allocating, and integrating the individual parts logically and skilfully.
When all the ordering is done, the correct structure is established, the route becomes clear, the central axle is unimpeded, the primary and secondary factors are apparent, the movements are logical, and skill naturally follows.
Practice means gradual reduction. Dissect, dismantle, discard, and then put it back together again. Have an ever inquiring mind and the urge to know more.
Enlightenment is accumulative. Everything is in the quan. Because you cannot see it doesn't mean it doesn't exist. Don't negate it because you’ve not realised it. The key to success is yourself!