The fourth line meets the time of Increase, dwelling near the position of the ruler and occupying its proper correctness.
With yielding compliance, it assists the ruler above, and below it accords and responds to the firm yang of the initial line; in this way, it can bring increase to the one above.
However, its position does not hold the center, and its corresponding partner is also not in the center, which means it is deficient in centrality.
Therefore it is said: if its conduct attains the middle way, it can benefit the sovereign above, and reporting to the superior will gain trust and compliance.
Having a yielding and gentle body, it lacks firm and independent resolution; thus 'it is advantageous to be relied upon in moving the capital.' To be relied upon means relying upon and attaching to the superior. Moving the capital means moving in accord with those below.
Above, it relies on the ruler of firm centrality to deliver increase; below, it accords with the talents of firm yang to carry out the affairs; such is how it is advantageous.
Since antiquity, whenever the people of states and settlements found no peace in their dwellings, the capital was moved; relocating the capital is an act of moving in accord with those below.