It is for filial piety!
2.
For the happiness of the public, don't go back if you have no time.
The so-called loyalty and filial piety can't be satisfactory, but it can be satisfactory.
Essentially, it is satisfaction, that is, the internal perfection of personality.
It seems that every time I hear Premier Zhou Enlai and others during the revolutionary period,
I must go home for the Spring Festival. ........
As for the principle of causality, you can see the Shurangama Sutra.