When one member of a family achieves success or gains prominence, the entire family benefits from their elevated status or influence; one person's success brings honor and benefits to their entire lineage.
听说他家的小儿子在城里做生意发了大财，全家人都跟着享福，真是一子出家，七祖升天啊。
I heard that his youngest son made a fortune doing business in the city, and now the whole family is enjoying a comfortable life; it's truly a case of one person's success bringing benefits to their entire family.
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