Yichuan YizhuanLine statement
Six in the Third Place is in the time of Kan's entrapment; being yielding yin and occupying a place neither central nor correct, its station is unfitting, so advancing, retreating, and staying are all impossible.
Coming down, it enters the midst of peril; going up, it meets doubled danger. Both retreating to come and advancing to go are perilous; hence it says 'coming and going, pit upon pit.' Since both advancing and retreating are perilous, dwelling is also perilous.
'Zhen' means propping and leaning; dwelling in danger and propping oneself up represents extreme restlessness. Dwelling in such a state only plunges one deeper into perilous traps; hence it says 'entering into a pit within a pit.'
A path such as that occupied by Three cannot be used; hence it is warned: 'Do not use it.'