This is the 27th image in TuiBei Map, which means "Daming founded the country". In this picture, there are two circles in the sky and a tree with a ribbon hanging on it. Some people say it's a "bending ruler". Actually, these are two puzzles. The two circles above refer to "the sun" and "the moon", "the sun and the moon are suspended", and "the sky" and "the moon" together are Amin's words; A ribbon or a ruler hanging on a tree refers to the word Zhu, whose surname is Zhu. Because the word "Zhu" is composed of ribbons or curved rulers hanging from wooden characters, the words "Ming" and "Zhu" are implied in the 27th image of TuiBei Map, which naturally refers to the Ming Dynasty.