The narrative follows the cyclical nature of human history and the dream-state of the protagonist, Humphrey Chimpden Earwicker, as he navigates a night of subconscious exploration. The protagonist exists within a fluid, shifting identity that mirrors the collective history of Dublin and the wider world. Opposing his progression are the constraints of conventional language and linear time, which the text actively dismantles through a complex, multi-layered linguistic structure. The narrative framework operates as a nocturnal dreamscape, utilizing a non-linear, polyglot style that forces the reader to interpret meaning through sound, allusion, and wordplay.

Discussion often centers on the extreme difficulty of the text and its status as one of the most challenging works in the English language. Readers frequently highlight the necessity of secondary guides and annotations to navigate the dense, idiosyncratic vocabulary Joyce employs throughout the book. Critics often debate whether the work functions as a coherent narrative or a purely aesthetic experiment in linguistic deconstruction. The balance of the work leans heavily toward atmosphere and stylistic innovation rather than traditional character development or plot. Many scholars view the text as a final, radical evolution of the modernist project, cementing its reputation as a singular, if polarizing, achievement in literary history.