When you say facial blindness do you mean inability to read emotions/expressions or facial recognition? I have problems with facial expressions/emotions not recognition so I'm not sure if its a diagnostic criterium.
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Balance is needed within the universe, can be demonstrated in most/all concepts/things. Black/White, Good/Evil, etc.
All dependent upon your own perspective in your own form of existence, so trust your own gut and live the way YOU want/need to.