I thought the main epihphany began around page 195 when Stephen describes a moment of sudden knowledge. The novel describes that Stephen's "mind was waking slowly to a tremulous morning knowledge, a morning inspiration." It says that his soul is waking. It describes how verses were passing from his mind to his lipsand how "he felt the rhythmic movement of a villanelle pass through him." At this moment, it seemed to me like everything suddenly became clear and he was able to capture the perfect words to compose his poem. I agree that part of the epiphany seems to be that Stephen decides to give up his devout religious beliefs. He says "I will not serve that in which i no longer believe." He goes on to say "I will try to express myself in some mode of life or art as freely as I can and as wholly as I can, using for my defence the only arms I allow myself to use, silence, exile and cunning." Basically I thought his epiphany is that he chooses to pursue art over religion. Stephen is choosing to dedicate his life to art. He realized he is not afraid to be alone in order to pursue his artistic ambitions.