Decrease

已事遄往，无咎，酌損之。

Set aside one's own affairs and go quickly. No fault. Consider how much to give up.

Line 1 sets aside its own affairs to support the corresponding fourth line, but the amount given still calls for judgment. Changing Line 1 makes Water below Mountain, Hexagram 4.

利貞，征凶，弗損益之。

Constancy is beneficial; setting out brings misfortune. Without diminishing oneself, one can benefit another.

Line 2 holds its firm central position rather than rushing outward. In the traditional reading, maintaining that integrity is itself a benefit to the fifth line. Changing Line 2 makes Thunder below Mountain, Hexagram 27.

三人行，則損一人；一人行，則得其友。

When three people travel together, their number is reduced by one. When one travels alone, a companion is found.

The arithmetic of three people and one companion closes inner Lake at Line 3. Filling that open line makes Heaven below Mountain and yields Hexagram 26.

損其疾，使遄有喜，无咎。

Reduce the ailment; prompt action brings joy. No fault.

In the traditional reading, Line 4 receives prompt help from the corresponding first line to lessen an ailment. Changing Line 4 makes Fire above Lake, Hexagram 38.

或益之，十朋之龜，弗克違，元吉。

Someone adds ten pairs of tortoise shells; the gift cannot be refused. Greatly favorable.

At Line 5, the yielding center receives a gift of great value. In Zhu Xi’s reading, the ten pairs of tortoise shells are an offering that cannot be refused. Changing Line 5 makes Wind above Lake, Hexagram 61.

弗損，益之，无咎，貞吉，利有攸往。得臣无家。

Benefiting others without diminishing oneself. No fault; constancy is favorable, and proceeding is beneficial. One gains followers beyond one's own household.

At Line 6, benefits extend outward without impoverishing their source. Zhu Xi connects the final household phrase with the breadth of that generosity. Changing the firm top to yielding makes Earth above Lake, Hexagram 19.