相生相克
      Explanation: Refers to the metal, wood, water, fire, earth five substances with each other to mutual restraint germinal ◇ extended to the general relationship between the dialectical relationship between material.
      Source: Song interpretation Puji "Wu Deng Yuan" Volume sixteen will have five elements gold wood, allelopathy. "
      Examples: Colored flags by metal, wood, water, fire, earth, ~. ★ clear color of money, "said Yue Fei," seventy-ninth back