Top Nine, with the virtue of firm yang, occupies the office of the grand tutor.
The ruler, Six in the Fifth Place, is yielding, submissive, and follows it, relying on its nourishment; thus it undertakes the responsibility of the realm, and the realm derives its nourishment through it.
For a minister to undertake such a charge, he must constantly harbor a sense of peril and caution, and then there will be good fortune. Men like Yi Yin and the Duke of Zhou never ceased to be diligently concerned, cautious, and reverent, and thus achieved ultimate good fortune.
When the ruler's talents are insufficient and he relies on oneself, while oneself shoulders the great charge of the realm, one must exhaust one's talents and strength to rescue the realm from hardship and peril and establish peace and order; hence it is said, 'it is advantageous to cross the great river.'
Receiving such exclusive trust from the ruler and bearing so heavy a responsibility, if one does not rescue the realm from hardship and peril, how could one be worthy of such trust or be called a worthy?
One must devote full sincerity and exert all strength without hesitation, yet vigilance and caution must never be forgotten.