Involucro literally translates to "wrapper" or "casing". It's an interesting and somewhat uncommon word to find in song lyrics, making it stand out.
In the song, Giordana Angi uses it metaphorically to describe "Casa involucro di tutte le mie età" (Home, wrapper of all my ages). This poetic image suggests that home is not just a physical place, but a protective shell or container that holds all her memories and different stages of life, making it a deeply personal and evocative choice.
"Casa" means "home," and Giordana Angi spends the whole song arguing with the word instead of just defining it. She opens by listing what home used to be, "Casa viaggio" ["Home, a journey"], "Casa libertà" ["Home, freedom"], then lets it go stale: "Casa stanca che ora vuoi lasciare" ["A tired home you now want to leave"]. By the chorus, home has stopped being a place and become a person. "Se non sei tu la casa io non so più abitare" ["If you're not the home, I don't know how to live anymore"] is the line the whole song hangs on, and a few bars later she says the quiet part out loud: "C'è troppo spazio adesso" ["There's too much space now"].
The second half stops arguing and starts remembering. "Casa nei ricordi" ["Home, in memories"] turns the same word into a scrapbook, and by the final lines she's stopped hoping to stay and settled for being remembered: "Casa è il posto dove tu" ["Home is the place where you"], "Mi penserai" ["will think of me"]. It's a breakup song that never uses the word breakup. It just keeps handing "home" a new meaning until there's nowhere left to give it one.