In the Buddha’s time, there were four sugarcane merchants who were friends. They were travelling to sell sugarcane. On their way, they met a private Buddha who was staying in a hut on the way and was ready to beg for food. They offered their sugarcane and rice to the private Buddha. Later they met a farmer and would sell their sugarcane to him. When they opened the parcel of the sugar mill, it became gold which made them delighted.