S'éteigne comes from the verb s'éteindre, which literally means "to extinguish oneself" or "to go out" (like a light or a fire). It's a more evocative and less common word than simply saying "to end."
In the song, Calogero uses it in the line "Avant qu'on s'éteigne," meaning "Before we fade away" or "Before we die out." It sets a poignant tone, urging listeners to give their best before time runs out, making it a powerful and memorable choice.
"Donne" ("Give") is Calogero's call to give of yourself fully, before life runs out.
The song opens with urgency: before we fade away, before night takes us, before energy leaves us, none of us takes anything with us. So the only thing worth doing is to give — everything, to the people around you.
Giving here means more than material things. It means offering your best self despite the pain you carry, forgiving others as you'd want to be forgiven, and loving even those who never give anything back. Calogero argues that what actually remains of a life isn't what we accumulate but our actions and gestures — an echo of who we really were.
The repeated promise across the choruses is that giving makes you stronger than you think, not weaker. It's a simple, generous philosophy: since we leave with nothing, the most meaningful thing to leave behind is what we gave.