A new perspective of vulnerability

I always thought being vulnerable was being open or susceptible to harm or injury. However I came across this lecture on TED by Brene Brown who is a researcher who studies human connection which gave a complete different view to the definition of Vulnerability. In fact she felt people who connected well with others believed that what made them vulnerable made them beautiful. I am still trying to come to terms with this concept and have watched the video below many times to try and grasp it further. But to be honest I have still not been able to understand it completely. But what I believe she is trying to say in simple language is that by trying to block (avoid) what may hurt us we close up other aspects of ourselves which deprive us of joy, creativity, love and belonging. If anyone can shed some light or has another opinion  on this I would very much love to hear it.