You know.. I listen to music late a night and then look up the artist. I too thought that Paul was talking about Mary mother of Jesus until I heard him explain it all in an interview.
On a more humorous note. Last night, I listened to Night Moves by Bob Segar and was pretty shocked at those high points his girl had, "High and Firm." Never heard breasts described this way and didn't realize the song was about sex. Oh my, am I naive?