In a world increasingly determined by cultural boundaries, some cultural-epistemic elements can be crucial to understand a certain or specific people. In this sense, saudade may be an important aspect in the building of Brazilian discourse. In short, saudade is a feeling of missing someone or object, absence, nostalgia; it is highly present in the Brazilian sentimentality through three distinct influences – African, Portuguese, and Indigenous. As an epistemic category of Iberian culture, particularly in Brazilian national identity, this complex feeling, as a plural territory of existence through collective memory of a people, forms a common place of a group of individuals, where one reinvents, recreates, imagines, and even appropriates the cultural imagination, representation, and symbolism in order to go on indefinitely imprinted on the time. Thus, this work argues saudade as an essential aspect of Brazilian cultural heritage, which could be “activated” and intersected by existential semiotics in order to highlight important aspects, elements, mechanisms and foundations of this Brazilian striking feature. On the other hand, it is important in the Brazilian discourse as representation and identity – image of nation. From the viewpoint of myth-nostalgic, this myth of “three sad races” emerges from the sociocultural roots of Brazilian society, becoming a sad joy, an optimistic nostalgia. This mix of pain and hope, at the same time nostalgia, helps to reach what we might call “The Brazilian Soul”. According to Eckert and Rocha “to dwell memory space is deal with collective, individual, and social negotiated memories, and not merely tame an empty and opaque territory, place of reactivation of lost traditions or nostalgia of the past”. [See Eckert and Rocha. 2000. A memória como lugar fantástico (Memory as a fantastic place). PPGAS – UFRGS]. Thus, through a memory-identity approach, and Tarasti's studies about individual and collective subjectivity, this paper aims to show how saudade lives under earthquakes of semio-crisis and in transition, highlighting philosophical aspect of saudade in the way to realize how values can change concerning to the preservation of this Brazilian striking feature.