An essay in video form about Feste, the fool from Twelfth Night of W. Shakespeare, under the title of Just A little laugh just a little cry, a Greek tragedy point of view, where the character Feste, which is sublimely wise in the play, adopts the instability of identity of himself. The Pythagorean Feste wisdom is attacked by a nervous laugh - cry, that makes impossible to know which are his exact feelings. The spikes in his face protect him from the absurdity and the pain that the rest of the characters produce on him. A Metempsychosis and an e-collar helps him out not to bite his body. The darkness appears forming an obscure liquid on his face. The permanence of Feste as a Reason for right character in the Twelfth Night is understood as critical. What could happened if the instability of this character in a new social reality Zeitgeist drives him crazy and as a metaphor, trauma and symptom didn't require him at all at this play.