The end of the upper trigram represents the completion of the Dao of the family; therefore it speaks thoroughly of the root of ordering the family. The Dao of ordering the family cannot be achieved without utmost sincerity.
Hence, there must be inner trust and fidelity, and only then can it endure long, leading the multitude to transform naturally into goodness. If one does not proceed from utmost sincerity, one cannot maintain it constantly oneself, let alone expect to move others.
Thus, ordering the family takes having sincere trust as its root. In managing a household amidst the emotional attachments of wife and children, if kindness goes too far, awe-inspiring dignity is lost; if affection overpowers, righteousness is obscured.
Therefore, the peril of the family often lies in a deficiency of ritual propriety and laws, giving rise to contempt and laxity. There has never been an instance where elders lose their dignity and the young forget deferential compliance without the family falling into disorder.
Therefore, there must be awe-inspiring dignity to achieve ultimate good fortune. Securing the enduring preservation of the family rests on nothing other than these two: having trust and maintaining awe-inspiring dignity. Thus it is spoken of at the conclusion of the Gua.