Lyric discussion by puzzud 

I always took this song as a sweet romance, sung by a lonely heart.

It's about that person you see regularly in your life, whether it be a neighbor, somehow that attends your school, or rides your train; you're attracted to this person but there is never any practical reason for you to meet.

And so, after a time, this person leaves your life. Maybe this person was your "soul mate". You'll never know.

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