The principle of hanging hands in fortune telling.

What does the idiom "Wei Zi chaos" mean? I didn't understand these four words when I saw an archway.

This is not an idiom.

Wei Zi

Most of them refer to the purple stars in physiognomy, which is called "the master of fighting". Ancient researchers regarded Purple Star as "Emperor Star", so the person who named Gong Xing purple was Emperor Xiang.

Luanluan

Refers to the Luan car. The ancient emperor's carriage had bells, so it was also called the emperor's carriage

The general meaning of these words is to describe the residence of prominent dignitaries.