For reasons which now sound baroque I needed a degree by the end of that summer, and the English department finally agreed, if I would come down from Sacramento every Friday and talk about the cosmology of “Paradise Lost,” to certify me proficient in Milton. I did this. Some Fridays I took the Greyhound bus, other Fridays I caught the Southern Pacific’s City of San Francisco on the last leg of its transcontinental trip. I can no longer tell you whether Milton put the sun or the earth at the center of his universe in “Paradise Lost,” the central question of at least one century and a topic about which I wrote 10,000 words that summer, but I can still recall the exact rancidity of the butter in the City of San Francisco’s dining car, and the way the tinted windows on the Greyhound bus cast the oil refineries around Carquinez Straits into a grayed and obscurely sinister light. In short my attention was always on the periphery, on what I could see and taste and touch, on the butter, and the Greyhound bus. During those years I was traveling on what I knew to be a very shaky passport, forged papers: I knew that I was no legitimate resident in any world of ideas. I knew I couldn’t think. All I knew then was what I couldn’t do. All I knew was what I wasn’t, and it took me some years to discover what I was.

Which was a writer.

By which I mean not a “good” writer or a “bad” writer but simply a writer, a person whose most absorbed and passionate hours are spent arranging words on pieces of paper. Had my credentials been in order I would never have become a writer. Had I been blessed with even limited access to my own mind there would have been no reason to write. I write entirely to find out what I’m thinking, what I’m looking at, what I see and what it means. What I want and what I fear. Why did the oil refineries around Carquinez Straits seem sinister to me in the summer of 1956? Why have the night lights in the bevatron burned in my mind for twenty years? What is going on in these pictures in my mind?

From Why I Write by Joan Didion

Life changes in the instant. The ordinary instant. At some point, in the interest of remembering what seemed most striking about what happened, I considered adding those words, ‘the ordinary instant’. I saw immediately that there would be no need to add the word ‘ordinary’, because there would be no forgetting it: the word never left my mind. It was in fact the ordinary nature of everything preceding the event that prevented me from truly believeing it had happened, absorbing it, incorporating it, getting past it. I recognise now that there nothing unusual in this: confronted with sudden disaster, we all focus on how unremarkable the circumstances were in which the unthinkable occurred, the clear blue sky from which the plane fell, the routine errand that ended on the shoulder with the car in flames, the swings where the children were playing as usual when the rattlesnake struck from the ivy.

- From The Year of Magical Thinking by Joan Didion