He is on the train from Kyoto to Osaka. It is a 'bullet' train. He closes his eyes and sings the song to himself. He knows it looks crazy, but he cannot help it. It seems appropriate. Their songs were as far sighted and wise then as they are passe now.
Periodically another super express whizzes by in the opposite direction, blocking the view of apartments in front of mountains momentarily.
The journey will end soon. The journey will resume soon.