Leggerezza translates to "lightness" or "lightheartedness." It's a beautiful and somewhat poetic word that goes beyond just physical weight.
In the context of this song, Mina sings about missing "quella tua leggerezza per affrontare il mondo" (that lightness of yours to face the world). It refers to a carefree, optimistic, and resilient spirit that helps one navigate life's challenges, making it a deeply evocative and desirable quality.
Have you ever missed someone so much it feels like they are a part of you? In "Non Smetto Di Aspettarti," which means "I Don't Stop Waiting for You," the singer expresses a deep and powerful longing for a person who is absent. She misses everything about them, from the way they laugh until they cry ("quando ridi fino alle lacrime") to the comforting look in their eyes ("i tuoi occhi che sanno accarezzarmi"). This person's presence brought a special lightness that helped her face the world and even her own sadness.
But there's a fascinating twist in this story of longing. The singer wonders if this person she misses so intensely even exists in reality. She sings, "Sarà che non esisti / E allora io ti invento," which translates to "Maybe you don't exist / And so I invent you." It seems she creates this perfect person in her mind and through her song, making them feel real. The song explores the idea that the need to love and be loved is so essential that if we can't find it, we might just create it for ourselves.