Neil Young - Flying On The Ground Is Wrong (demo)

I've listened to versions of this by The Guess Who, The Buffalo Springfield, The Summer Snow, The Sneetches, The Rainy Day, and The Cascades, but I don't feel like any of them quite reaches the Platonic ideal of the song, so let's go with Neil's demo, as there's always something unimpeachable about the songwriter's original conception. Also: what is this song about?