Abstract: (Lucian Blaga: biography and poetry. Poetic expressiveness and universe of discourse) The publication in 2023 of Lucian Blaga's love letters to Elena Daniello, between 1950 and 1961, may be a significant event both from a historical-literary perspective and from a biographical perspective, contributing to the knowledge of aspects of the creative process or of lesser known events that marked the poet. Also, from a poetic and stylistic perspective, this epistolary can be an interesting object of analysis. Thus, in the paper I propose, I will highlight from a stylistic perspective the poet's remarkable creative individuality and the strength of his profound expressiveness. Though however much metaphorical subtlety, affective depth and expressive refinement we discover in these letters, they are not poetry/literature, but reveal the empirical hypostasis of the poet and the world, highlighting the fact that poetry is not reducible to expressiveness, to metaphor, however elaborate and surprising it may be. Thus, I will propose a comparative approach of the ways in which meaning is created in the two textual types, more precisely, in the letters and poems written by Blaga. I will highlight that in each of these typological hypostases, the creation of meaning is oriented by the universe of discourse, a concept defined by Coșeriu as the "mode of knowledge" or "system of meanings" to which a text belongs. I will also approach the letters and the poetic texts of Blaga comparatively, on the basis of the coordinates that define the universes of discourse – subjectivity, intersubjectivity and objectivity – with the intention of revealing the empirical and poetic specificity of these texts.