In this era, the world had just been created. All order and circulation had to be re-created.
After all, it wasn't a complete world to begin with. It was pitch-black, and it was opened up in the soil.
There was no natural sun, moon, or even rain, River, or divine position here. It formed an internal cycle, which was difficult to complete.
Therefore, after the creation of the heaven and earth, the Dao Lord appointed all the great godhoods and began to establish the order of the heaven and earth in the chaos. He ordered the innate ancient gods to plan and distribute the mountains and rivers, create rivers, swamps, mountains, forests ...