sentences:  Such an encounter can make a person mentally unstable, and avoiding such instability by making people aware of their condition and ready to handle it is one of the central themes of existentialism.Albert Camus, for instance, famously claimed in "Le Mythe de Sisyphe" that "there is only one truly serious philosophical problem, and that is suicide".Aside from these "psychological" issues, it is also claimed that these encounters with the absurd are where we are most in touch with our condition as humans.