I think this question could very possibly tie into the question "why do you do what you do?" Sometimes the life defining moment is the reason some people do what they do. But, as we know, that's not always the case.
My life defining moment was when I was elected to be a class officer. It was a shocker for me because I was just that "nice," nerdy girl. I've been that nice girl for as long as I could remember. I used to wonder if being kind was even worth it because I would let people walk all over me, and people just took advantage of my kindness. I also had, the biggest guilty conscious (and still do), so it's harder for me to stand up for what I believe in...because I afraid of offending others. But being an officer had made me realize that being kind does make a difference, even though it is not obvious at a certain time. It also allowed me to learn to say no. It allowed me to be who I am today--a person who can say no when necessary.
Okay. So, maybe that wasn't a LIFE defining moment, but it's a defining moment.
What are your guys' defining moments?