What does Geng Jin represent with God in the eight characters?

When Geng Jin was not in the month, Chen Geng was already very strong, and water appeared. It was a happy event to see the logging in the warehouse. Therefore, soil is a taboo, and fire can only be used if there is water. At this time, Geng Jin is afraid of fire, dry soil and brittle gold, so it cannot be generalized and taken out of context. More can't go to quote classics, swallow dates and jump to death.