She made it through the wilderness, all right. And she’s remained at the center of global pop culture ever since. The mother of reinvention talks about her art, her husbands and her early years as “an ego-driven nutcase.” It doesn’t really matter whether you buy the transformation of the world’s onetime reigning sex kitten — okay, lioness — into a New Age Mother Theresa determined to bring a ray of light into your spiritually parched life. It doesn’t matter at all. Because she believes it ardently for all of us. Madonna Louise Veronica Ciccone Ritchie simply has more conviction than you do. Much more. She practically reeks of it. It’s in the way she enters a room, in the way she exits, in the rather regal pronouncements that pepper her conversation, and most of all, it’s in her seeming immunity to criticism — something she’s had a surfeit of since she and her husband of two years, director Guy Ritchie, released their movie Swept Away last fall. Madonna, clad in black pants, ...