Lyric discussion by redskins 

I believe in the song she kills herself.

"You're crazy for believin' You'll ever leave the ground" He said, "Only angels know how to fly" -I think this is foreshadowing that she will become an Angel.

"One Sunday morning She didn't go to church He wondered why she didn't leave He went up to the bedroom Found a note by the window With the curtains blowin' in the breeze" -Went up to the bedroom. The bedroom is upstairs. A note by the window. A suicide note. Curtains blowin in the breeze; the window is open, and she jumped out. 'Man you ought to see her fly.'

Just my opinion.

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