I’ll admit that LSOTHHB was not a song I gave much thought to, but the lyrics of so many songs I listened to back then were either so deep, or so poetical, or so beyond my personal experience, or so nonsensical, or some combination of the above, that I often didn’t even try to understand them, but just let them flow over and around me and ooze into whatever cracks in my consciousness they could find.
I’ve often been surprised to learn about real, or at least alternative, meanings to songs I’ve known for decades. We have a whole thread for that experience.