This work explores the concept of "saudade" and its significance in Brazilian culture. Using existential semiotics, it investigates this feeling, which is experienced intensely in Brazil and which plays a fundamental role in shaping identity and reality. Music and visual arts are empirical fields where saudade is expressed and how it helps to define the Brazilian experience. It spotlights saudade's constant presence in everyday life and its artistic transformations, where it merges feelings with the crafting and deciphering of signs. Saudade emerges not just as a cultural phenomenon but also as an epistemological foundation, enhancing our comprehension of signs as dynamic forces that both sculpt and are sculpted by cultural realities. Saudade creates a dynamic connection between individual and collective experiences, past and present, wishes and reality, showing how signs can navigate complex human and cultural relationships. Thus, this study highlights the layered nature of saudade, underscoring the need to delve into feelings and emotions as core to understanding and interpreting signs. In this light, I aim to reflect on our life with signs, uncovering the complex web of connections that make up the Brazilian semiosphere. This approach opens up new views on the foundational aspects of semiotics, indicating that the interplay between signs and realities is as much about emotion as it is about intellect, as rooted in culture as it is universal.