Six in the third place means:

Shock comes and makes one distraught.
If shock spurs to action
One remains free of misfortune.

There are three kinds of shock-the shock of heaven, which is thunder, the shock of fate, and, finally, the shock of the heart. The present hexagram refers less to inner shock than to the shock of fate. In such times of shock, presence of mind is all too easily lost: the individual overlooks all opportunities for action and mutely lets fate take its course. But if he allows the shocks of fate to induce movement within his mind, he will overcome these external blows with little effort.