1990-4-25, the first day of the fourth lunar month, eight characters: Xin Si, the year of life, the five elements of hardware, two fires, one soil, eight characters of water-deficient wood, Chen Zang Yi Mu, Gui Shui, Shen Zang Shui, similar soil, six gold, two different fires. Japan's five elements of Geng Jin, a life theory centered on Geng Jin.