From Meta

You are not stupid:

When you discover you are a “phony”
This phony thing is a mask, did you know the word mask comes from the Greek for megaphone?
The masks in classical theater were megaphones.
The masks used in classical theaters had caricatured features with megaphones built into them for use of the actor to project better in an open air theatre. The word mask is equivalent to, IS the persona, the phony, the one who is NOT YOU. To discover you are phony through and through is to discover you are a big act.