I saw this allusion when I was reading The Analects of Confucius: "Bricks are paid by bamboo and silk. Satire and praise, a hanging pole of Nishan. "

I don't know what it means at first, but from the context, it means: Buddhist annotation.

The whole sentence means: this lecture is a brick to attract jade and jointly promote Confucius' holy learning. The famous sayings and philosophies in The Analects of Confucius can be used as Buddhist annotations.