Spørgsmål om citat

Er der nogle som har læst : A Painfu Case by James Joyce og kan hjælpe med hvordan det følgende citat skal forstås om hovedpersonen, Mr.. Duffy :

He lived at a little distance from his body, regarding his own acts with doubtful side-glasses. He had an odd autobiographical habit which led him to compose in his mind from time to time a short sentence about himself containing a subject in the third person and a predicate in the past tense.

?Og 1000 tak for hjælp