Cai Shun was a man in Runan (today's Henan) of the Han Dynasty. His father
died when he was young and he was very pious to his mother.
His time coincided with the Chaos Caused Wang Mang and famine and living
expenses were very high. He could not but pick mulberries as food for himself
and his mother.
One day, he encountered the Red-Brow Army and the solders asked him: "Why do
you put red mulberries and black mulberries into two baskets separately?"
Cai Shun answered: "The black mulberries are for my mother and the red
mulberries are for myself."
The solders had compassion for his piety and gave him two deciliters of rice
and one bovine hoof in respect.