A signifier is a signifier of a signifier. It's like a sign on a sign. Or a label on a label.
In our case, the signifiers are the signs that make prophets out of people, or people out of signs.
Signifieds are the things signified by signifiers. Like, for example, the thing that a signifier signifies. Or the thing that a signifier signifies, but doesn't.
prophets, or people out of signifieds. It's all very confusing, but don't worry, we're working on it.