This study, spanning c. 1980 to 2016, offers an alternative critical perspective of the poetic works of the acclaimed Spanish poet Ana Rossetti. At its core, it explores the presence of Posthumanism and the mystical in late 20th and early 21st Century Iberian poetics, and more specifically, how Rossetti's more recent poetry expresses the same tendency toward a transcultural and posthuman model that is simultaneously essentialist and deconstructive. The books examines modern Iberian mysticism as found in the works of such authors as Blanca Andreu, Clara Janés, and Joaquim Pessoa, Vergílio Alberto Vieira, among others. Such poetic works establish themselves within a unique framework of mystical illumination which itself incorporates elements of late postmodern deconstruction and, more recently, a criticism of the posthuman condition as analyzed in critical works on the subject.