Themes are the fundamental and often universal ideas explored in a literary work.

The Development of Individual Consciousness

Perhaps the most famous aspect of A Portrait of the Artist as a Young Man is Joyce’s innovative use of stream of consciousness, a style in which the author directly transcribes the thoughts and sensations that go through a character’s mind, rather than simply describing those sensations from the external standpoint of an observer. Joyce's use of stream of consciousness makes A Portrait of the Artist as a Young Man a story of the development of Stephen’s mind. In the first chapter, the very young Stephen is only capable of describing his world in simple words and phrases. The sensations that he experiences are all jumbled together with a child’s lack of attention to cause and effect. Later, when Stephen is a teenager obsessed with religion, he is able to think in a clearer, more adult manner. Paragraphs are more logically ordered than in the opening sections of the novel, and thoughts progress logically. Stephen’s mind is more mature and he is now more coherently aware of his surroundings. Nonetheless, he still trusts blindly in the church, and his passionate emotions of guilt and religious ecstasy are so strong that they get in the way of rational thought. It is only in the final chapter, when Stephen is in the university, that he seems truly rational. By the end of the novel, Joyce renders a portrait of a mind that has achieved emotional, intellectual, and artistic adulthood.

The development of Stephen's consciousness in A Portrait of the Artist as a Young Man is particularly interesting because, insofar as Stephen is a portrait of Joyce himself, Stephen's development gives us insight into the development of a literary genius. Stephen's experiences hint at the influences that transformed Joyce himself into the great writer he is considered today: Stephen's obsession with language; his strained relations with religion, family, and culture; and his dedication to forging an aesthetic of his own mirror the ways in which Joyce related to the various tensions in his life during his formative years. In the last chapter of the novel, we also learn that genius, though in many ways a calling, also requires great work and considerable sacrifice. Watching Stephen’s daily struggle to puzzle out his aesthetic philosophy, we get a sense of the great task that awaits him.

The Pitfalls of Religious Extremism

Brought up in a devout Catholic family, Stephen initially ascribes to an absolute belief in the morals of the church. As a teenager, this belief leads him to two opposite extremes, both of which are harmful. At first, he falls into the extreme of sin, repeatedly sleeping with prostitutes and deliberately turning his back on religion. Though Stephen sins willfully, he is always aware that he acts in violation of the church's rules. Then, when Father Arnall's speech prompts him to return to Catholicism, he bounces to the other extreme, becoming a perfect, near fanatical model of religious devotion and obedience. Eventually, however, Stephen realizes that both of these lifestyles—the completely sinful and the completely devout—are extremes that have been false and harmful. He does not want to lead a completely debauched life, but also rejects austere Catholicism because he feels that it does not permit him the full experience of being human. Stephen ultimately reaches a decision to embrace life and celebrate humanity after seeing a young girl wading at a beach. To him, the girl is a symbol of pure goodness and of life lived to the fullest.

The Role of the Artist

A Portrait of the Artist as a Young Man explores what it means to become an artist. Stephen's decision at the end of the novel—to leave his family and friends behind and go into exile in order to become an artist—suggests that Joyce sees the artist as a necessarily isolated figure. In his decision, Stephen turns his back on his community, refusing to accept the constraints of political involvement, religious devotion, and family commitment that the community places on its members.

However, though the artist is an isolated figure, Stephen's ultimate goal is to give a voice to the very community that he is leaving. In the last few lines of the novel, Stephen expresses his desire to “forge in the smithy of my soul the uncreated conscience of my race.” He recognizes that his community will always be a part of him, as it has created and shaped his identity. When he creatively expresses his own ideas, he will also convey the voice of his entire community. Even as Stephen turns his back on the traditional forms of participation and membership in a community, he envisions his writing as a service to the community.

The Need for Irish Autonomy

Despite his desire to steer clear of politics, Stephen constantly ponders Ireland’s place in the world. He concludes that the Irish have always been a subservient people, allowing outsiders to control them. In his conversation with the dean of studies at the university, he realizes that even the language of the Irish people really belongs to the English. Stephen's perception of Ireland’s subservience has two effects on his development as an artist. First, it makes him determined to escape the bonds that his Irish ancestors have accepted. As we see in his conversation with Davin, Stephen feels an anxious need to emerge from his Irish heritage as his own person, free from the shackles that have traditionally confined his country: "Do you fancy I am going to pay in my own life and person debts they made?" Second, Stephen's perception makes him determined to use his art to reclaim autonomy for Ireland. Using the borrowed language of English, he plans to write in a style that will be both autonomous from England and true to the Irish people.