...and cannot come again

          XL (40)

          Into my heart an air that kills
           From yon far country blows:
          What are those blue remembered hills,
           What spires, what farms are those?

          That is the land of lost content,
           I see it shining plain,
          The happy highways where I went
           And cannot come again.

                       Alfred Edward Housman, A shropshire Lad.