Is Vanity something bad?

I’ve finished publishing the first 12th chapters of my new book The Winner Stands Alone (I published nearly 1/10 of the book on line). The final chapter – on line – is about vamity. King Solomon starts the Ecclesiastes saying : “Vanity of vanities. All is vanity”. Somehow vanity can destroy a person but can also puch a person to become a better human being.

So nothing is absolute and I would like to hear your opinion on that. Mostly about your experiences with the good side of vanity.