It focuses on human beings trapped in incomprehensible world.
The insanity of the world is easier to accept if looked at with a degree of humor.
The belief that human existence has no meaning or purpose is the main philosophy of Absurdism that was originally a Paris-based avant-garde movement. Theater of the Absurd in a sense is mans reaction to a world apparently without meaning, and/or man as a puppet controlled or menaced by invisible outside forces. Absurdism is also frequently compared to Surrealism. It can also be associated with Existentialism.
Many of the Absurdists were contemporaries with Jean-Paul Sartre, the philosophical spokesman for Existentialism in Paris, whose philosophy is expressed in Being and Nothingness.
It focuses on human beings trapped in an incomprehensible world. The theme of incomprehensibility is coupled with the inadequacy of language to form meaningful human connections. Absurdism is "the inevitable devaluation of ideals, purity, and purpose."
Absurdist drama asks its viewer to "draw his own conclusions, make his own errors. Though the Theatre of the Absurd may be seen as nonsense, it has something to say and can be understood.