This chapter focuses on the poetry, fiction, and essays of José Lezama Lima, the Grupo Orígenes he cofounded, and its literary journal of the same name, noting their reverberations far into the postrevolutionary era. The chapter encompasses the work and poetics of Lezama, other poets in the Orígenes orbit, and the group’s journals, including their high-modernist esthetic and internationalist reach; Lezama’s view of poetry’s “epistemic role in Western and non-Western cosmologies” and “innate resistance to causal and empiricist visions of time and progress” and the group’s incursions into myth and cosmogony; the canonical or cult status later achieved by many Orígenes poets; and the critical ostracism and resuscitations Lezama and Orígenes experienced in Cuba’s postrevolutionary periods. Lezama’s 1957 essay La expresión américana is central to an in-depth analysis of the Orígenes group’s “grand mosaic of hemispheric and transatlantic creation”; Lezama’s intricate conception of a New World Baroque; and the essay’s projection, as in other writing by Lezama, of a distinctively Caribbean Baroque, even as specific Antillean referents remain unnamed.