From 'Six in the Fourth Place: Waiting in blood, emerging from the cave.' The Correct Meaning states: 'Waiting in blood' means that yin and yang injure each other, hence there is blood.
Nine in the Third Place's yang wishes to advance upward, and this Six in the Fourth Place's yin blocks its path; the two obstruct and harm each other, hence it is called 'blood.' Waiting in blood is like waiting for the time amidst difficulty.
'Emerging from the cave': a cave is the path of yin, and dwelling at the start of Kan means dwelling in a cave.
The third line presses upon it and the fourth cannot resist, so it emerges from the cave it inhabits to avoid it, merely complying to obey orders and escape blame; hence The Image says: 'Waiting in blood: complying to listen to orders.'
Regarding the commentary 'Whenever blood is mentioned' down to 'emerging from the cave,' the Correct Meaning states: 'Whenever blood is mentioned' means yin and yang injuring each other, as in Kun's Six at the Top: 'their blood is dark and yellow.'
'A cave is the path of yin' means that holes and tunnels are all obscure and hidden, hence 'the path of yin.'
'Dwelling at the start of Kan is dwelling in a cave': Kan is Kan-danger; if one were at the top of Kan, one would have emerged from the cave; dwelling at the start of Kan is dwelling in the cave.
But the Changes encompasses ten thousand images: for this single line of Six in the Fourth Place, if spoken of in terms of battle, its emergence involves blood; if spoken of in terms of dwelling, its place is a cave. Cave and blood each accord with their situational meaning.