This chapter traces the reception and transformation of the classical doctrine of furor poeticus from the Renaissance to contemporary literary culture. Beginning with Marsilio Ficino’s Neoplatonic reinterpretation of Plato’s theories, it examines how the concept evolved across European contexts, influencing major literary movements and figures. The chapter explores the shift from divine possession to notions of ingenium and genius, emphasising the role of Horatian moderation and the naturalisation and secularisation of poetic inspiration. From Romanticism’s celebration of the inspired, often tormented, poet to twentieth-century psychoanalytic models and Surrealist automatism, the study shows how furor poeticus adapted to new intellectual climates, arguing against reductive interpretations of the doctrine as mere irony or literary topos, and proposing instead its enduring relevance through a lineage of writers from Shakespeare and Goethe to Baudelaire and García Lorca. Ultimately, it contends that modern poetics still grapple with the mystery of inspiration, maintaining a tension between technique and transcendence that reflects the persistent vitality of the Platonic legacy.