Yan Zixiao's father strictly disciplines his children, and the children obey his father.
It is a moral fashion advocated by feudal society for mothers to be kind to their children and filial to their parents.
Filial piety wears hemp and takes heavy filial piety.
Pima Dai Xiao means that when an elder dies, his descendants will wear linen and white clothes to express their condolences.
Seeking loyalty and filial piety means that loyal ministers must be at the door of the dutiful son.