Voragine translates to "chasm" or "abyss". It's a strong, evocative word that paints a dramatic picture, making it stand out from more common vocabulary.
In the song, Lazza uses it to describe the sky becoming a "voragine" after a painful breakup, symbolizing a sudden, overwhelming emptiness and a feeling of being swallowed by despair. This metaphorical use adds significant emotional depth to the lyrics.
Lazza opens on a wound rather than a memory: "Mi hai fatto un buco addosso con la tua ultima frase" ("You punched a hole in me with your last sentence"), then "Sul cuore ho un punto rosso di una luce laser" ("On my heart I have a red dot of a laser light"). A sniper's sight parked over the chest is a very literal way of saying she can finish him whenever she likes. The chorus is the argument he keeps losing with himself: "Tu non farmi sapere con chi sei stasera" ("Don't let me know who you're with tonight"), because "Perché non lo perdonerei" ("Because I wouldn't forgive him"). He would break the chains and the atmosphere along with them, and then "Ma poi me ne vergognerei, ehi" ("But then I'd be ashamed, hey"). The jealousy and the embarrassment about the jealousy turn up in the same breath, which is the honest part.
The title arrives in the hook: "E mi sento come in un tunnel col buio davanti" ("And I feel like I'm in a tunnel with darkness ahead"). That flips the usual tunnel picture, since here there is no light at the far end. Verse two drives around inside it, headlights off, Wu-Tang on the stereo, his mood going up and down "Come sopra la giostra di un luna park" ("Like on a funfair carousel"), and he sums himself up in one flat couplet: "Sono il tipo che conta qualche milione" ("I'm the guy who counts a few million"), "Poi finisce che muore sopra a una Porsche" ("Then he ends up dying on top of a Porsche"). The line that actually stings is quieter: "Pensare che avevamo tutte le notti davanti" ("To think we had all the nights ahead of us"). Same word, davanti, ahead of him at the beginning and nothing but dark ahead of him now.