Nine at the top means:

The rain comes, there is rest.
This is due to the lasting effect of character.
Perseverance brings the woman into danger.
The moon is nearly full.
If the superior man persists,
Misfortune comes.


Success is at hand. The wind has driven up the rain. A fixed standpoint has been reach. This has come about through the cumulation of small effects produced by reverence for a superior character. But a success thus secured bit by bit calls for great caution. It would be a dangerous illusion for anyone to think he could presume upon it. The female principle, the weak element that has won the victory, should never persist in vaunting it--that would lead to danger. The dark power in the moon is strongest when the moon is almost full. When it is full and directly opposite the sun, its waning is inevitable. Under such circumstances one must be content with what has been achieved. To advance any further, before the appropriate time has come, would lead to misfortune.