To be correct, it is "Yi Chuan Cohesion Uploading". "It is easy to have Tai Chi, which means that two instruments are born, two instruments are born with four images, and four images are born with gossip." The whole passage means that all things and phenomena in the vast universe contain yin and yang, as well as inside and outside.

But they are both antagonistic and interdependent, which is the general law of the material world, the procedure and origin of many things, and the fundamental reason for the emergence and destruction of things. The way of heaven and earth creates everything with yin and yang. Heaven and earth, sun and moon, thunder and lightning, wind and rain, four o'clock, before noon, and male, rigid and soft, dynamic and static, obvious convergence, everything, regardless of yin and yang.

Extended data:

These four images are: sun, lunar, shaoyin and shaoyang.

Its other names are: Shaoyang, Lao Yang, Shaoyin and Laoyin.

Mathematically speaking, these four images are seven, nine, eight and six.

From the orientation, the four images are: East, South, West and North.

According to the season of the year, these four phenomena are spring, summer, autumn and winter.

On Four Images in Names: Meng Zhang, Meiji, Jian Bing and Lingguang.

On four images of birds and animals: Qinglong, Xuanwu, White Tiger and Suzaku.

Baidu Encyclopedia-Taiji gives birth to two instruments, and two instruments give birth to four images.