Book 14 defines the truly filial person as the one who steps first toward the parent’s most painful burden. The test is not whether a child enjoys the parents’ company when life is stable, but whether the child volunteers for the difficult task when everyone else withdraws.
That turns filial piety from etiquette into initiative. The filial child does not wait for assignment, applause, or ideal conditions. Love anticipates the need and moves toward it.
This matters well beyond family language. In ministry, leadership, and prayer, the mature person is usually the one who reaches for the burden others are avoiding.