How does the following poem make you feel?

Part of "La Belle Dame Sans Merci" by John Keats

O WHAT can ail thee, knight-at-arms,
  Alone and palely loitering?
The sedge has wither’d from the lake,
  And no birds sing.    
 
O what can ail thee, knight-at-arms!
  So haggard and so woe-begone?
The squirrel’s granary is full,
  And the harvest’s done.

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