The Freudian concept of primal repression was not clarified by its author in a clear and unequivocal way. It has been considered mythical, obscure, mysterious, incomplete, enigmatic or controversial. This paper revisits it with the help of the hypothetical conceptual clarity provided by the heard word (sound-image) and visual-image from the text of aphasias. The heard word would allow an affective change and a reorganization according to the oedipal law, essence of the primal repression. The existence of a thing-presentation prior to the word is raised, and how the word would generate two elements that the author calls Ding and Sachevorstellung. An everyday scene would exemplify the theoretical approach. Later, three vignettes are studied: the dream of a neurotic patient in which it's shown how primal repression would work when adequately constituted; a clinical experience with a schizophrenic in which the opposite would be shown; finally, an intermediate situation, where an enactment is presented for whose resolution the primal repression of the filicidal in the analyst would be fundamental. The last two situations also would prove how part of contemporary analytic work consists precisely in helping to generate primal repression.