Final answer:
The protagonist in "The Guest" by Albert Camus undergoes a transformation in his understanding of existential themes, gaining a deeper understanding of his own existence while losing his sense of control.
Step-by-step explanation:
In "The Guest" by Albert Camus, the protagonist goes through a transformation that involves a deeper understanding of existential themes. He becomes more aware of the absurdity of life, realizing that life is ultimately meaningless and unpredictable. This causes him to lose his sense of control as he realizes that he cannot change or escape the absurdity of existence. However, he also gains a deeper understanding of his own existence and the choices he has made.