Sonnet. "Art thou already weary of the way?"

Art thou already weary of the way?
  Thou who hast yet but half the way gone o'er;
  Get up, and lift thy burthen: lo, before
  Thy feet the road goes stretching far away.
  If thou already faint, who hast but come
  Through half thy pilgrimage, with fellows gay,
  Love, youth, and hope, under the rosy bloom
  And temperate airs of early breaking day;
  Look yonder, how the heavens stoop and gloom,
  There cease the trees to shade, the flowers to spring,
  And th' angels leave thee; what wilt thou become
  Through yon drear stretch of dismal wandering,
  Lonely and dark? I shall take courage, friend,
  For comes not every step more near the end?