Yichuan YizhuanLine statement
When things reach an extreme they reverse; when matters reach an extreme they transform. Oppression has reached its extreme, and in principle it must change. Creeping vines are plants that entangle and bind; perilous rocks denote an unstable, precarious shaking.
The Top Six dwells at the extreme of oppression, entangled by oppression and perched in the highest, most perilous position: 'oppressed by creeping vines and perilous rocks.' 'Move and regret' means every movement brings regret; there is nowhere that is not oppressive.
'There is regret' means repenting former mistakes. 'Saying' means speaking to oneself. If one can say to oneself: 'Acting like this always brings regret; I must change what was done before and feel remorse'—if one can feel remorse, then going forward brings good fortune.
When oppression reaches its limit, marching forth leads out of oppression; hence good fortune. The third line is yin atop the lower hexagram and brings misfortune; why is the top line, atop the whole hexagram, without misfortune?
The answer is: the third line dwells in firmness and peril; being in oppression, it employs firmness and peril, hence misfortune. The top line dwells in joyousness with softness, merely marking the extreme of oppression.
When oppression peaks, there is a way to transform oppression.
The top lines of both Oppression and Difficulty at the Beginning lack resonance at the close of their hexagrams; yet Difficulty at the Beginning brings 'tears of blood flowing copiously,' while Oppression brings 'there is regret; to march brings good fortune.'
This is because Difficulty at the Beginning is extreme peril, whereas Oppression embodies joyousness. Advancing with joyous compliance allows one to depart from oppression.