text:  The ghost , a combination of many literary figures , was originally addressed in the poem as " <unk> <unk> " before being revised as an ambiguous " you " . " <unk> <unk> " was Dante 's way of addressing <unk> <unk> , a former mentor whom he meets in Hell to which he has been condemned for <unk> . Eliot , in a letter to John <unk> dated 27 August 1942 , explained why he changed the wording : 
  