If Jiàn has appeared in your reading, the book is naming a configuration of gradual development. The image is the tree on the mountain — exposed, slow, unmistakably rising. The hexagram is built around the metaphor of a traditional marriage with its sequence of formal stages, each of which must be completed before the next can begin. Skip a stage and the whole process collapses.

Classical commentary reads this hexagram as the discipline of respecting the proper order of growth. Some processes can be telescoped; this one cannot. The hexagram appears when the reader is in the middle of something that has a natural sequence — a learning curve, a courtship, a partnership formation, the building of trust within an institution — and the temptation is to skip ahead.

What the book counsels is the patient observance of stages. 居賢德善俗 — abide in worthy virtue, improve the customs. The work is to inhabit one's current stage fully before moving to the next, and to let the present level of the practice become its own quiet authority. The judgment's auspicious word attaches to this honouring of the sequence; without it, the clearance lifts.

Jiàn's failure mode is the impatient leap. The book treats this as one of the most common failures of well-meaning effort. The hexagram appears when the reader is at a stage that feels too modest for their ambition and is tempted to compress it. The book is firm: this stage, fully inhabited, is what will allow the next one. Skip it, and what comes next is built on something that cannot hold the weight.