Hsu / Waiting (Nourishment)
above: K'an The Abysmal, Water
below: Ch'ien The Creative, Heaven
The fourth [six], divided, shows its subject waiting in (the place of) blood. But he will get out of the cavern.
Line 4 has passed from the inner to the upper trigram, and entered on the scene of danger and strife; - 'into the place of blood'. Its subject is 'weak and in the correct place for him'; he therefore retreats and escapes from the cavern, where he was engaged with his enemy.