Revolution (Ko)

Revolution (Ko), also called Change and identified as Hexagram XLIX, concerns changes called for in the condition of a country and the discipline needed to carry them out. Its central claim is conditional: great progress and success follow when reform is firm and correct, its necessity has been established, and its beneficial effects become evident. The hexagram makes change a question of public legitimacy as well as action; a proposal may be sound in principle yet fail if it comes too early or is imposed before people can trust it.

Meaning and Scope

The text describes Ko as change on a potentially large scale, including changes in the state of a country. The character was originally used for the skin of an animal or bird, alive or dead, and acquired the meaning of changing at an early period. The commentary notes that the historical transition from hide to change need not be settled to understand the hexagram’s concern: it addresses circumstances in which change is called for and the spirit and manner in which it should be made.

The whole-hexagram judgment says that Ko is believed in only after it has been accomplished. It promises great progress and success, and says that firmness and correctness remove occasion for regret. This is not an assurance that every declared reform will win assent. Rather, the judgment connects credibility to outcome: the change must be justified by necessity, conducted rightly, and made convincing through what it achieves.

Conditions for Reform

The commentary stresses that people generally regard change with suspicion and dislike, so it should not be made hastily. A proved need for change beforehand and firm correctness in carrying it through are the stated conditions for regulating it. Necessity supplies the warrant; disciplined conduct supplies the standard. The text thus distinguishes reform from novelty for its own sake and makes the manner of action part of its claim to legitimacy.

The line sequence gives timing a practical role. At the bottom of the figure, the first line depicts its subject bound with the hide of a yellow ox. The commentary reads this as change attempted too early: the subject has no proper correlate or helper above and is represented as unable to act. By contrast, the second line says that its subject makes changes after some time has passed, with good fortune and no error. Though weak, this line occupies its correct position, stands in the centre of the trigram of brightness and intelligence, and has a proper correlate in the strong fifth line. The contrast makes delay a condition of effective action, not mere hesitation.

Authority, Proof, and Restraint

The judgment’s standard of credibility also frames the hexagram’s political force. Since the subject is change in the condition of a country, the issue is not simply whether an authority can act, but whether the need is sufficiently established and the conduct sufficiently correct for the change to be accepted. The text offers no license for precipitous action: public suspicion is a real obstacle, and success comes only after reform has made its case.

At the top of the figure, the superior man is shown making changes as the leopard changes its spots, while small men change their faces and display obedience. The line warns that going forward at this point would lead to evil; good fortune instead lies in abiding firm and correct. The commentary’s broader argument helps explain this restraint: once change has been accomplished and acknowledged, further action is not automatically warranted. The closing line distinguishes a substantive alteration from the merely outward conformity of those who show obedience, while directing the superior man to hold to what is correct rather than press onward.