What are some major themes of Jack Kerouac's work On the Road?

s book
explores a variety of themes, including the following

• The desire for adventure
• The desire for
  freedom
• The yearning for originality
• An opposition to
  restrictions
• Sexual entanglements
• Romantic
  relationships
• The ways reality complicates or subverts fantasies and
  dreams
• Friendship
• Geographical exploration


• Travel
• Relations between males
• Relations
  between males and females
• The traits of young people


• The post-World War II period in the United States
• The importance
  of literature
• The importance of individual experience


• Unconventional behavior
• Tensions within families


• Friendship as an alternative to disappointing family relationships


• Health and illness
• Foreign cultures (especially the culture of
  Mexico)
• The distinctive features of different parts of the U. S.
  
• The monotony of everyday, conventional existence
• The
  attractions of novelty
• The ideas and ideals of Friedrick
  Nietzsche
• The appeal of the western U. S. as an alternative to the
  east
• Emotional enthusiasm and physical energy
• Physical
  sensation and mental stimulation
• The insignificance, in an ideal world, of
  racial divisions
• The joy provided by madness, ecstasy, inspiration, and
  sublimity
• The value of spontaneity
• The importance and
  appeal of music, especially jazz, as in the following passage:

. . . Whoo! said Dean.  He was rubbing his chest, his
belly; the sweat splashed from his face.  Boom, kick, that drummer was kicking his drums down
the cellar and rolling the beat upstairs with his murderous sticks, rattlety-boom!  A big fat
man was jumping on the platform, making it sag and creak.  Yoo!  The pianist was only pounding
the keys with spread-eagled fingers, chords, at intervals when the great tenorman was drawing
breath for another blast €“ Chinese chords, shuddering the piano in every timber, chink, and
wire, boing!