God has never let me down. He’s a key factor in guiding my decisions and feeling safe within them. My wife and I suffered three miscarriages, one of them quite late in the pregnancy. Without faith, we would have retreated into our own corners to lick our wounds, but our love increased.

To so many people, I am no longer just myself. I am a reminder of a thought that is difficult for the rational brain to accept: that the elements that constitute our bodies might fail at any moment. When I originally got my diagnosis at age 35, all I could think to say was, “But I have a son.” It was the best argument I had. I can’t end. This world can’t end. It had just begun. A tragedy is like a fault line. A life is split into a before and an after, and most of the time, the before was better.

So it affects my work in the sense that now I’ve been kidnapped twice. So now when I’m working in a place like Iraq — even if it’s northern Iraq and someone who hasn’t survived those two things would just drive on these roads and say, like, “Oh, this is great” — but of course, for me, all I see is ISIS around every corner. Or I envision the road filling up with insurgents because I’ve seen that, and I’ve been in that situation. So it affects my work in that sense, that I’m more paranoid than I ever was, certainly than I was in my 20s.

Downstairs, the boys gaze at a screen on the old futon in the playroom. We will figure out what to do about them soon enough. They probably already know what’s up and are waiting for us to figure out how to say it. Their very existence is the one dark piece I cannot get right within all this. I can let go of a lot of things: plans, friends, career goals, places in the world I want to see, maybe even the love of my life. But I cannot figure out how to let go of mothering them.

Ever since adolescence, [my elder sister Anna] has been an enthusiastic admirer of the great Swedish writer, the Nobel Laureate Selma Lagerlöf, and she infected me so much with her enthusiasm that I decided to become a writer and describe Italian saga "à la Lagerlöf". But things were to take a different turn.