To talk about balance, it's easier to talk about what's out of balance. And I think anytime that you have any disease, and disease meaning lack of ease, lack of flow. . . dis-ease. So any time there's disease, you're out of balance, whether it's jealousy, anger, greed, anxiety, fear.
The grim possibility is that she who 'hides her brains' will, more than likely, end up with a mate who is only equal to a woman with 'hidden brains' or none at all.