Jia Shen (甲申) and Yi You (乙酉) Jing Quan Shui (井泉水) refer to the phase where Metal is at its official position in Shen (申) and at its peak in You (酉). When Metal is both born and flourishing, Water is consequently generated. However, at the initial stage of its birth, its strength is not yet abundant, hence it is called Jing Quan Shui (井泉水), meaning "Well Spring Water."