Zhengyi says: This uses the hexagram images to explain the meaning of achieving innocence. Because the firmness of Zhen comes from without to become master within, and Zhen is movement while Qian is strength, it can make all things 'without falsehood.'
Zhengyi says: Explaining how the lines' meaning achieves innocence. Nine in the Fifth Place occupies the center with firmness, and Six in the Second Place corresponds to it; this is 'firm and central, with correspondence.'
Being firm and central, it can discern the true from the false; having correspondence, things follow and obey it, daring not to be false. 'Great success through correctness is the mandate of Heaven.'
Zhengyi says: Explaining the meaning of 'Supreme success, furthering through correctness.' Majestically firm, upright, and correct, with selfish desires unable to operate, how could there be falsehood? This is Heaven's teaching and mandate.
The Way of Heaven is pure yang, firm and capable of strength, resembling the virtue of Qian; hence it is 'the mandate of Heaven.' Since it is Heaven's mandate, how could it be violated?
Regarding the commentary from 'firmness arrives from without' to 'it does not further one to undertake anything'—Zhengyi says: 'To cause the way of falsehood to perish and the way of innocence to be completed'—falsehood means deceptive, pretentious, and not following correct principle.
Without a firm and central ruler, being yielding, weak, and depraved, things would all become deceitful and false, which is the arising of the way of falsehood.
Now meeting a firm and central ruler who is majestic, firm, and correct, those below revere his majesty and dare not be deceitful or false; this is the destruction of the way of falsehood and the completion of the way of innocence.
From 'If not correct, there will be error' to 'Heaven's mandate does not assist; how could one act?' Zhengyi says: 'If one is not correct, there will be error, and it does not further one to undertake anything; in innocence, if one undertakes anything, where could one go?'
explains the meaning of 'if not correct, there is error, and it does not further one to undertake anything.' In 'where could one go,' the first zhi is a particle and the second zhi means to go to.
When oneself is not correct, in an age of 'Innocence,' if one wishes to go anywhere, where can one go? Thus it says 'in innocence, where could one go?' 'Heaven's mandate does not assist; how could one act?'
means that if oneself is not correct and seeks to go forth, violating Heaven's mandate, then Heaven's mandate will not assist. Could one ultimately proceed? It means one would ultimately be carrying out an action unsupported by Heaven.
Regarding the commentary from 'if not correct there is error' to 'not assisted, could one ultimately proceed?': Zhengyi says: 'Jing yi zai' means ultimately—saying that unsupported by Heaven, could one ultimately proceed?