Tai Chu, the moment when form first occurs. It is tangible yet without substance, invisible to the senses, the primal chaos before the Heaven and Earth creation.
Tai Su, transformed from Tai Chu, forms into shape, possesses substance yet remains without a complete body, thus referred to as Tai Su. This is a step further, the beginning of substance, the chaotic status where prime matter starts taking shape.
Taiji is the cosmic status when Yin and Yang are not divided, then follows the Two Forms transforming into the Four Symbols, the Four Symbols into the Eight Diagrams, using Yin Yang Qi to create all things.
However, Chu Xisheng does not think so.
Does chaos end after Taiji? That may not be the case.
