According to the ancient book Shang Dian, Da Yu's father, Gun, created the "city Guo" for the first time, and inferred that Guo might worship Gun.
Guo's overall shape is like a square tower as a totem symbol. Those who live in Dongcheng are called Dongguo, those who live in Xicheng are called Xiguo, those who live in Cheng Nan are called Nanguo, and those who live in Beicheng are called Northland.
Guo surnamed Guo, especially the capital of Qi State. Guo Shu, the ancestor and brother of Guo, takes Guo as Guo, which is different from Ji's surname.