His poems consistently display, in both their syntax and modulation of thought, philosophical parallels. Stevens' dominant mode of thought is phenomenological. This can be shown by analyzing parallels between phenomenological methodology and Stevens' poetry. Particularly three poems--"Thirteen Ways of Looking at a Blackbird" (1917), "The Snow Man" (1921), and "The Latest Freed Man" (1938)--embody, respectively, the poem as doing phenomenology,(a philosophical movement that describes the formal structure of the objects of awareness and of awareness itself in abstraction from any claims concerning existence ) the poem as a description of the phenomenological mind, and the poem as a portrait of the phenomenologist.