One of the most important themes in Eugene O'Neill's plays is finding true self. Robert in Beyond the Horizon and Yank in The Hairy Ape struggle against the Fate (Force behind) and try to find true self by overcoming the suffering and the sense of alienation and frustration, and accepting the absurd of human conditions and the death caused by the reversed position and the loss of harmony in their life. Robert finds his true self through his death caused by tuberculosis and Yank, also, through his death caught in a Gorilla's cage. Ultimately, their death is not only an evident tragic affair in appearance, but becomes a release from the alienation and the suffering of life, a blessing, and a perfection of finding true self and eternal belonging in reality.