Our semiotic study refers to Proust’s book In Search of Lost time. It is actually another reality that is depicted through musical visions that fragrance of hawthorn berries he breathed in the air of Combray. Actually, whenever two images are overlayed the one to the other in this case their relationship is interpictural. Under the impact of music the relationship becomes intermusical and eventually interartictic because the interaction is triadic e.g. literary through Proust’s text and musical when the author is hearing the music and makes us listening to it as well. Finally, pictorial whenever the image we perceive, overlays the musical and literary one. Peirce’s triangle is expressed in a multidimensional way in art since it has polyvalent meanings, which trigger the broadening of the... visual range. The different planes of the Primary, Secondary, and Tertiary combine in a pyramid. Each one of them independently recreates the relationships in the sign–between the Representamen, Object and Interpretant. The triangle expands beyond the normal boundaries of interpretation to transform into a pyramid by becoming three-dimensional. Thus, the Interpretant proliferates because the images of the Significant proliferate in our mind. The basis is symbolic, the pure Spirit, God, the form itself who degenerates this infinite number of images becoming endless because melodies that Proust hears are. The author speaks about „endless vision”. Proust’s literary text as a Representamen of the Object in the reality /immediate or dynamic / itself becomes the Interpretant of a picture i.e. Monet’s Poppy Field and Belle Île, Rain existing in different parts of Proust’s text which on their turn the paintings becoming textual representations are Representamen of the literary text itself. Then they can be interpreted as a musical surface as well becoming in this way Interpretant of music i.e Debussy’s The Sea and so on depending on the context. There is a proliferation of Representamen. Thus, Proust’s text becomes a polysemic Representamen as it is transformed into painting and music.