What does it mean that a black cat and a white cat form a Tai Chi diagram?

It contains the unique positive energy of Tai Chi, which means that people's gas field increases and their magnetic field increases.

Tai Chi map is said to have been handed down by Chen Tuan, a Taoist priest in the Song Dynasty. Originally called the infinite graph. Chen Tuan was a Taoist from the Five Dynasties to the early Song Dynasty. According to legend, he has profound attainments in Inner alchemy and Yi-ology.

Yin-yang fish, also known as "Taiji Diagram", is a symbol reflecting dialectical thoughts in China's traditional philosophy. According to historical records, Chen Tuan once passed the Prenatal Education Map, Taiji Map, River Map and Luoshu to his students for planting, and passed them to Mu Xiu and others respectively. Later, Mu Xiu passed the Tai Chi map to Zhou Dunyi.