Lyric discussion by SV 

Great Lyric...I think this song speaks of yearning for simpler times and frustration/diillusionmeet with those who go through life blind to things going on around them. There is also an indication of Lennon's own insecurities.

I think SV here is close to the meaning of the song. But John was really writing about the Vietnam War that was going on around the time of Magical Mystery Tour. John actually wrote this song while he was on the set in the movie "How I Won the War."

If speaking in general, I would want to go with this interpretation as well.

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