What does the valley circle mean?

The crop is millet: goods are homophonic, meaning goods.

Related introduction:

① After watching an animation or playing a game, its company or manufacturer will release some items and characters around it, collectively referred to as Xiaomi official.

After watching an animation or playing a game, some readers or players have the ability, such as drawing and lettering. They can also hand over their works to some factories to print and distribute drawings, pillowcases and seals in batches, and then go out to sell them. These surrounding areas are called Van Gogh.

3 buying these communities is called buying grain.