At my desk next morning I held my pen and hunched my shoulders and leaned my head down, physically trying to look more deeply into the page of the notebook. I did this for only a moment before writing, as a batter takes practice swings while he waits in the on-deck circle. In that moment I began what I call vertical writing, rather than horizontal. I had never before thought in these terms. But for years I had been writing horizontally, trying to move forward (those five pages); now I would try to move down, as deeply as I could.