It is a well-known fact that Luis Cernuda omitted Ocnos (1942, 1949 y 1963) and Variaciones sobre tema mexicano (1952) from the successive editions of La realidad y el deseo, even though they were arguably two of the best works of prose poems in Spanish literature. This article considers the distinct role that the prose poem plays in Cernuda's work, which is based on the (re)construction of identity through the attribution of meaning to episodes of the past. Taking into account the theory of 'literary visibility' developed by Friedmar Apel and the importance of myth in Cernuda (highlighted by Jacques Ancet and Hilda Pato) we will analyse the evolution of the Cernudian prose poem, from its identification with myth, to how it feeds into the mythification of experience itself.