Abstract:Furor poeticus invites us to question the exact relationship between lyrical and dramatic modes. In humanist theater, it is wholeheartedly the expression of tragic rage or the prophetic gifts assigned to a character. The seventeenth century, for its part, admits poetic style crafted in this way only insofar as it is fully integrated into the diegesis. Whether it be passion for love or madness, Tristan combines these two traditions by combining lyricism and verisimilitude.