9. The First and Most Important Good Deed is Filial Piety The most serious sin of all is to commit suicide.
It is foolish and also agonizing for one to commit suicide. The suffering after suicide is more painful. One would suffer the pain of suicide repeatedly because one has yet to repay the Four Great Kindnesses: the kindnesses of one’s parents, teachers, country, and all other beings. If one commits suicide, without fulfilling one’s duties, not only would the parents be heartbroken, the spouse and children would lead miserable lives. Therefore, this sin is exceptionally severe.