A brief encounter, a China idiom. Pinyin is fé ngj and gê uhui, which means to meet an opportunity. It's from Wang Mingshizhen's A Compendium of songji.
The pinyin fé ngj: gò u hu ㄥㄐㄡㄨㄟㄟㄨㄟㄟㄟㄟㄟㄟㄟ _ explains this opportunity. The source is Wang Mingshizhen's short edition songji.
Wang Mingshizhen's Compendium of Compilation: Song Ji: "The schemer meets the opportunity, the yang sets the yin, but people don't feel it, Song Zhuzu also. As predicate and object; Refers to good luck.