If you're neurotic and you think, I'm not where I deserve to be or my mother didn't love me, or blah, blah, blah, that lie, that neurotic vision, takes over your life and you're plagued by it 'til it's cleansed. In a play, at the end of the play, the lie is revealed. [T]he better the play is, the more surprising and inevitable the lie is, as Aristotle told us. Plays are about lies.
David MametCharacters on stage, like people in what we refer to as "real life," do not speak to reveal themselves. They do not speak to conceal themselves. They speak to get whatever it is that they want. It is the only reason they speak.
David Mamet