Fata Morgana

by Christina Rossetti
A blue-eyed phantom far before
  Is laughing, leaping toward the sun:
Like lead I chase it evermore,
  I pant and run.
It breaks the sunlight bound on bound:
  Goes singing as it leaps along
To sheep-bells with a dreamy sound
  A dreamy song.
I laugh, it is so brisk and gay;
  It is so far before, I weep:
I hope I shall lie down some day,
  Lie down and sleep.