Jiawu Yimao Shazhongjin (甲午乙未沙中金) refers to the "Gold in the Sand" of the Jiawu (甲午) and Yimao (乙未) years. Wu (午) is the place where fire is prosperous, and when fire prospers, gold is defeated. Wei (未) is the place where fire declines, and when fire declines, gold is in its prime. Defeated yet in its prime, it cannot be cut or polished, hence it is called "Gold in the Sand."