The term "souvenir" in literature spans a wide spectrum of meanings, from a simple memento to an emblem of enduring memory. Early French texts [1][2][3] define it as a recollection or impression retained by the mind, while novelists often imbue the object with deeper emotional resonance. Stendhal, for instance, employs the term to capture a cherished remnant of a joyful encounter [4], and Conan Doyle uses it to anchor a narrative of personal intrigue [5][6]. Authors like Helen Keller and Guy de Maupassant further explore its symbolic weight, associating it with historical moments and tender farewells [7][8][9], and even framing it as a token of adventures and lost histories [10][11][12]. Thus, across diverse contexts, the souvenir becomes a bridge between the tangible and the intangible, evoking both memory and sentiment.