Brene Brown is onderzoeker en vertelt hoe zij niets wist over kwetsbaarheid maar wel er achter kwam wat ze miste. " Vulnerability is the core of shame and fear and the struggle for worthiness. But it’s also the birthplace of joy, of creativity, of belonging, of love.":

We live in a vulnerable world and one way we deal with it is by numbing vulnerability with medicine, addictions (food, drinks, smoking). But you can not selectively numb emotion. If you numb shame, grief, fear, disappointment you numb joy, gratitude, happiness. This makes us miserabel and looking for purpose and meaning leading to more vulnerability giving the incentive to numb again, a dangerous cycle.

http://www.ted.com/talks/brene_brown_on_vulnerability.html