Cai Shen （財神） aka Deity of Wealth， from the name we shall know， they are Deities that are able to control the wealth or fortune for the mortals,。
Since the day when mortal knew how to use money to exchange for other stuffs,， Deity of Wealth appeared， not for blessing for mortals to become extremely rich,， but to control the flow and movement of the money that involved in the mortals‘ activities,。
So how many Deity of Wealth are there？
Haha,， in this World,， there are a lot， in folks culture,， we have different type of Deity of Wealth,， such as Military Wealth （武財）， Scholarly Wealth （文財）,， Directly-Associated Wealth （正財）,， Physically-Associated Wealth （偏財）， etc,。 Each type of Wealth is being in-charge by one Deity of Wealth,。