This valuable canvas depicts Saint Jerome, whose figure occupies almost the entire visual field. The absence of space around him, intended not only as environment but also as an interior and mental space, channels the viewer's gaze exclusively onto the saint. This is accentuated by the use of a round canvas which compresses the surrounding environment and forces the observer to concentrate on the hermit. The half-length figure, positioned frontally, is that of an elderly man, not just in age, who embodies the man who has lived his life and must now confront his end, in that iconographic play that oscillates between flesh and bones, or between present and future. Saint Jerome is recognizable thanks to his typical iconographic attributes: the book, or rather the Bible he translated into Latin, the Vulgate, a reference text for the Western Church. He is immersed in the contemplation of vanitas, understood as a spiritual tool. The skull is indeed the symbol of inevitable death, which invites meditation on the transience of earthly life. In his hand, he holds a rosary with large beads, typical of monks and hermits, which alludes to repetitive prayer that should be a daily tool for the faithful. This work is attributable to the Sienese painter Francesco Vanni (Siena 1563-1610), an important transitional figure from Mannerism to early Baroque, and central to the evolution of local Sienese painting. He was strongly influenced by the painting of Federico Barocci (Urbino 1535-1612), who inspired him in his taste for soft color, naturalism, and the strong emotional intensity of images. These characteristics, in line with the cultural climate of the Counter-Reformation, were imposed to "adapt" to the spiritual needs of the faithful: works of art were to be instruments of faith, easy to read, characterized by figures in prayer and/or meditation, with clear and eloquent gestures, obviously depicting partially nude bodies that were realistic but limited in excessive aesthetic beauty in favor of greater devotional effectiveness. The devotional spread of Saint Jerome was configured as a tool of religious communication aimed at transmitting an ideal model of Christian life. At the Uffizi, in the Department of Drawings and Prints, inv. 10816F, a drawing by him is preserved [red chalk on paper, 205x292 mm] depicting Saint Jerome in meditation, the "first thought for an engraving or a lost painting." This work was taken up by Agostino Carracci (Bologna 1557-Parma 1602), of whom engravings are known from "Franciscus Vannius invn." The work, still on its original canvas, is embellished with an ancient and contemporary frame. It is an engaging, unmissable, and always relevant painting, and as the great Massimo Troisi would say in "Non ci resta che piangere" (We Have to Cry) upon the Friar's admonition: "Remember that you must die!" the protagonist replies, "How?" "Remember that you must die!" "All right." "Remember that you must die!" "Yes, yes, no, I'll write it down now, I have something to do... Don't worry." Dimensions: diameter 68 cm