The article tackles the cognitive aspects of the poetic text which reflects the individual poetic perception of the world. The poetic model of the world is regarded as a variety of complex dynamic processes analyzed with the theory of blending. The analyses of the poems «Twilight» by H.W. Longfellow and G.G. Byron are aimed to prove that conceptual metaphors form blending of several spaces thus creating the author's individual and symbolic image of the twilight.