Of his wife, Obama then said, “I’m extremely happy with her, and part of it has to do with the fact that she is at once completely familiar to me, but at the same time she is also a complete mystery to me in some ways. It’s that tension between familiarity and mystery that makes for something strong, because, even as you build a life of trust and comfort and mutual support, you retain some sense of surprise or wonder about the other person.” Vanity Fair, March 2009.