What they have in common is upward, superficial, humble, respectful and respectful.
Therefore, filial piety, I think, is actually starting from the ego, starting from the family, starting from words and deeds, starting from small things, and cultivating people's three kinds of consciousness.
First, respect the consciousness of falling in love. Brothers are like parents, leaders are like parents. This is not stupid loyalty, but because parents who are sick must always have a grateful heart.
Second, the awareness of obeying the rules. Through the cultivation and education of filial piety, a natural habit is formed, and then solidified into a universally believed code of conduct, which strictly abides by parents' orders, and the young and the old are orderly and different from each other.
Third, push yourself and others' consciousness. From observing filial piety to obeying rules, from individuals to families, from families to countries, we will do what we can for others. In a small family, honoring parents and serving brothers is naturally not a crime in society, let alone insurrection and disaster!