The infinite manifestation of Things can all be reduced via YinYang,
yet YinYang cannot be reduced.
It can be dissolved, perhaps, but not reduced.
In this way, Wuji (No-Polarity) is not a true reduction; it is a sublimation.
Oneness already contains YinYang as the polarity of Existence/NonExistence;
To-Be or Not To-Be.
Furthermore, once there is Some-Thing, it can be divided.
Only NoThing cannot be divided.
WuJi is Indivisible.
It is like the Origin of Things, not unlike an Uncaused-Cause.
YinYang arises from It, which blossoms into all manner of complexity (Entropy),
yet all of That can be reduced by YinYang.
The Universe is complex, yet simple; simple, yet profound.
WuJi is Nothing; Zero.
Yet Everything blossoms from it.
If you aim to understand TaiJi (Great-Polarity), you must aspire towards WuJi.