a yellow square, indicating this line as the constituting ruler of the hexagram Six in the fourth place means:

If you walk in the middle
And report the prince,
He will follow.
It furthers one to be used
In the removal of the capital.

It is important that there should be men who mediate between leaders and followers. These should be disinterested people, especially in times of increase, since the benefit is to spread from the leader to the people. Nothing of this benefit should be held back in a selfish way; it should really reach those for whom it is intended. This sort of intermediary, who also exercises a good influence on the leader, is especially important in times when it is a matter of great undertakings, decisive for the future and requiring the inner assent of all concerned.