Writing Finnegans Wake (1928-38), his final work, in a largely idiosyncratic language, a book in which the words are skewed from normal meaning, Joyce transcribed his symptoms, according to Lacan; he converted his sickness into art, his compulsions into his way of life, his symptoms into his personal style as a human and as an artist. The meeting of Joyce with his symptom is an encounter with the Real made possible by its conversion into an artistic process.
This section is from an article named "Real and Immanence in Cinema" by Daniela Angelucci.
There is no comma in the sentence. I couldn't figure out if it means 'his symptom' or 'the Real.'