The Oscar-winning actress - who has a two-year-old daughter Nahla with former boyfriend Gabriel Aubry - says her priorities have changed since becoming a mother and she is no longer so focused on her career.
Halle said: "Children shift your priorities and now I have a greater purpose for being here. I love making movies but I would give it all up to be with my daughter if I had to because she`s the love of my life. "She`s made me a better person because everything I do and say, everything I want and don`t want, I think first, `Will this be best for her?`
"When you have children you get to see things all over again. So I`ve never laughed as hard, I`ve never done more silly things, and I go to great lengths to make her laugh. She`s awakened a childlike side of me.
The 44-year-old beauty - who is currently dating Kylie Minogue`s former boyfriend, actor Oliver Martinez - also admitted Nahla has also influenced her taste in men.
She explained to the Daily Mirror newspaper: "Every choice I make now, and that includes who I choose to spend personal time with as a partner, is not just about me any more, it`s about what`s best for her."
However the `Gothika` star is happy in her new relationship and revealed things have never been better for her.
She said: "I am just a girl who met a boy; a girl who liked a boy; a boy liked the girl and then that`s what happened.
"I`ve wanted this for so long and I feel happier than ever before.
"I`m happy and fulfilled and I`m in a really good space in my life. I`ve survived many highs and many lows and I think I have it all in perspective now - never get too high and never get too low."