Siblings兄弟

The same element as the palace.

Rule
同我者為兄弟
兄弟

兄弟乃同類之人,彼得志則欺淩,見財則奪。

Siblings are people of your own kind. When they do well they bully you, and when they see money they take it.

Zeng Shan Bu Yi

What it stands for

This line covers brothers, sisters, cousins and sworn brothers. The book is wary of them. In a question about money, this line takes it. In a question about a plan, it blocks. In a question about a wife or servant, it does harm.

The rule above is a later summary. The book itself lists each palace’s lines one by one.

Sources Zeng Shan Bu Yi, chapter 8, from an online transcription, not yet checked against a printed edition. The plain text is ours.