The Siblings palace (Xiong Di)
The Siblings palace is the chart's area for brothers and sisters. We widen it to the people who grew up beside you: cousins, close peers and the sense of being on the same team.
Xiong Di (兄弟) means brothers, and it is the second section of the classic's palace chapters. In the old text this palace is a head count with commentary: it looks at the stars here and estimates how many siblings there might be and how well they get along. We read it less literally, as the palace of horizontal bonds, people who stand beside you, not above or below you.
That makes it a natural place to look for how you handle rivalry, loyalty and shared history. It is the palace of the family group chat, of the cousin you used to fight with, of the friend who is basically family. Warm stars suggest ease in those relationships, and sharper ones suggest more friction or distance, with no verdict about what you must feel.
Its opposite across the chart is the Friends palace (Jiao You), which makes the pairing clear: family-style closeness on one side, chosen closeness on the other.
A reflective question: who in your life is a sibling in spirit, whether or not you share parents? And is there someone you would like to be closer to?
For entertainment and reflection only. Not medical, financial, or legal advice.
Chinese Astrology (Zi Wei Dou Shu)
Sources
Book 2 (卷二), section 二 兄弟