Nobel laureate Czeslaw Milosz's most recent collection Second Space marks a new stage in one of the great poetic pilgrimages of our time. Few poets have inhabited the land of old age as long or energetically as Milosz, for whom this territory holds both openings and closings, affirmations as well as losses. "Not soon, as late as the approach of my ninetieth year, / I felt a door opening in me and I entered / the clarity of early morning," he writes...