Six, being yin and soft, dwells in the lowest place and at the bottom of Kan's peril; in oppression it cannot rescue itself. Only by obtaining the support of a firm and enlightened person above can it overcome its oppression.
The initial line has a proper resonance with the fourth, but Nine in the Fourth Place, being yang in a yin position, lacks correctness, loses firmness, and misses the center, while also currently oppressed and covered by yin—how could it deliver others from oppression?
It is like sitting under a bare stump of wood that provides no shade for things; a stump is a tree stripped of branches and leaves.
In other hexagrams, the fourth position, being close to the ruler, is not without aid; but here in oppression it cannot shelter things, so it is a bare stump. The buttocks are that upon which one sits.
'One's buttocks are oppressed by a bare stump' means having no shelter and finding no peace in one's dwelling. If one's dwelling were secure, it would not be oppression.
'Entering a gloomy valley': a person of yin softness cannot be at peace with what is met; unable to escape oppression, they become further confused and act recklessly, falling deeper into oppression. A gloomy valley is a deep and dark place.
Falling ever deeper into oppression with no means to emerge, one arrives at 'for three years one sees nothing.' This is to remain oppressed to the end; 'sees nothing' means not meeting that which allows breakthrough.