Mário de Sá-Carneiro, portuguese poet and writer, was one of the founders of the magazine Orpheu, which started the Modernism movement in Portugal. In this paper, we will deal with the poet´s feelings of awkwardness and strangeness before the world, particularly present in the imagery of his Last Poems (Últimos Poemas) which reflect his painful and violent self rejection. The frequently recurrring image of the labyrinth and the misdirection of the lyrical self will be tackled as well. In doing so, we will attempt to approach the sense of incompleteness and the perennial almost (quase) - an indelible feature of Mário de Sá-Carneiro poetry.