Motherhood has completely changed me. It's just about like the most completely humbling experience that I've ever had. I think that it puts you in your place because it really forces you to address the issues that you claim to believe in and if you can't stand up to those principles when you're raising a child, forget it.
I had a career and I came to motherhood late and am not married and have never had such a trusting relationship with a man - and trust is where the real power of love comes from.