Christina Georgina Rossetti

When I am dead, my dearest,
  Sing no sad songs for me;
  Plant thou no roses at my head,
  Nor shady cypress tree;
  Be the green grass above me
  With showers and dewdrops wet;
  And if thou wilt, remember,
  And if thou wilt,forget.
  I shall not see the shadows,
  I shall not feel the rain;
  I shall not hear the nightingale
  Sing on as if in pain;
  And dreaming through the twilight
  That doth not rise nor set,
  Haply I may remember,
  And haply may forget.