Six in the third place means

Before completion, attack brings misfortune.

It furthers one to cross the great water.

The time of transition has arrived, but one lacks the strength to complete the transition. If one should attempt to force it, disaster would result, because collapse would then be unavoidable. What is to be done? A new situation must be created; one must engage the energies of able helpers and in this fellowship take the decisive step–cross the great water. Then completion will become possible.