C219 The enigma is hard to solve say goodbye under the moon

In the bronze mirror in the sky, the sun and moon hung upside down. Remnants of fragments, half seal cochlea.

This was a charade.

"What does that mean? I don't know. " Old man Bai's son looked at Mr. Situ, "Before Master Wang left, he wrote these four sentences on a piece of paper, and then repeated them thrice consecutively until he stopped breathing