THE SIGN:

Trigram Kên, Keeping Stillabove Kên Keeping Still, Mountain
Trigram K'un, the Receptivebelow K'un the Receptive, Earth

The dark lines are about to mount upward and overthrow the last firm, light line by exerting a disintegrating influence on it. The inferior, dark forces overcome what is superior and strong, not by direct means, but by undermining it gradually and imperceptibly, so that it finally collapses.
The lines of the hexagram present the image of a house, the top line being the roof, and because the roof is being shattered the house collapses. The hexagram belongs to the ninth month (October-November). The yin power pushes up ever more powerfully and is about to supplant the yang power altogether.