Fire + Water

• Charlie's piano and its black and white keys are repeated often in this episode.
  
• During Charlie's hallucination on the beach, a white dove flies down from the sky.
  
• Charlie refers to Kate's black horse.
  
• Charlie's first vision of his mother and Claire as angels occurs during the day, but when he "comes to" it is nighttime.
  
• Locke offers Aaron a white shell(?)