The meaning of the phrase "all good deeds and filial piety come first" is that children should not act against their parents, the elders in the family and the ancestors.

The meaning of "Hundred virtues of filial piety first, Ciwu Si anti-feeding" is: children's behavior should not be contrary to the parents, the elders of the family and the hearts of the ancestors, and should be the children to repay their parents for their parental upbringing. From the late Qing Dynasty book "Night Talks Around the Furnace".

In the legend, the crow this bird in the mother's nurture after growing up, when the mother is old and weak, blind and can not fly, its children will go around looking for tasty food, back to mouth to mouth to feed the old crow, and never get tired, until the old crow dying, can not eat anything until. This is what is often referred to as "the crows feeding back".

Filial piety is the basic element of traditional Chinese virtues. The so-called filial piety culture is a cultural tradition of caring for parents and elders and honoring the elderly. It generally refers to the obligations that society requires children to fulfill towards their parents, including honoring, caring for and supporting the elderly, and providing for their parents and elders in their old age, and so on.