"Sometimes there's a third, even deeper level, and that one is the same as the top surface one.  Like with pie."

http://tiny.cc/DrHorrible

For the guy he was referring to, it was accurate.  The layer beneath the surface was all fake.  He was just as shallow and vacuous inside as he seemed to be.

But the same went for the one who said it.  As Billy, he came across as sensitive, his diabolically evil personal a secret identity.  But the guy in the laundromat was behind and underneath Dr. Horrible all along.  Whatever is to come after that door closes can be attributed to that sensitivity.

I think we are all like that.

We have our public personas, our secrets, our masks.  But our surface is actually a reflection of what is inside.  The in-between parts, the person that we tell ourselves we "really" are, the stuff of self-help books and therapy sessions, the things found in religion or meditation - like with pie, they are all just filling.

The very deepest level of all, it is made of the same stuff as the crust.