"Six in the Fifth Place: there is game in the field... carrying corpses, perseverance brings misfortune."
Correct meaning: "There is game in the field, it is advantageous to set forth the case"—yieldingness attains the honored throne; yin does not initiate action, and yieldingness does not provoke things, responding only after being provoked; in advancing, it is certain to be upright, and thus advancing brings success.
It is like wild beasts entering the fields to destroy crops: hunting them incurs no blame. Man's cultivating fields is not intended to be ravaged by beasts; a king's guarding a state is not intended to be thrown into chaos by rebels.
When beasts ravage crops, they may be hunted; when rebels disrupt the realm, they may be punished.
This borrows an external image to metaphorize human affairs; hence "it is advantageous to set forth the case, no blame"—if one is not upright, there is blame, but since one is in the right, one may hold this cause to question them without blame.
"The eldest son leads the host, younger sons carry corpses, perseverance brings misfortune": being yielding, it cannot serve as commander; being yin, its person is not martial and firm, so it cannot march in person; thus it must employ the likes of an eldest son or younger sons.
If the eldest son is employed, he can lead the host; if younger sons are employed, the army will surely be ruined and carry corpses, which is perseverance leading to misfortune.
Master Zhuang said: "'Eldest son' refers to Nine in the Second Place, whose virtue surpasses others; 'younger sons' refers to Six in the Third Place, whose virtue is inferior to others."
Examining the Xiang commentary: "'The eldest son leads the host' because he acts with centrality," which is Nine in the Second Place dwelling in the center; "'younger sons carry corpses' because their employment is improper," referring to Six in the Third Place losing its position.
Commentary to "advancing is sure to be upright."
Correct meaning: "Advancing is sure to be upright" means that only after being offended does one launch a punitive expedition, which is inherently upright in principle; hence it says "advancing is sure to be upright."