Six at the top means:

One must go through the water.
It goes over one's head.
Misfortune. No blame.


Here is a situation in which the unusual has reached a climax. One is courageous and wishes to accomplish one's task, no matter what happens. This leads into danger. The water rises over one's head. This is the misfortune. But one incurs no blame in giving up one's life that the good and the right may prevail. There are things that are more important than life.