Aggrappi comes from the verb aggrapparsi, meaning "to cling" or "to grasp onto something tightly." It's a less common verb than simply "to hold" and carries a stronger sense of desperation or dependence.
In "La Verità," Brunori Sas uses this word to highlight the human tendency to hold onto things, ideas, or even fears, even when they no longer serve us. The lyrics state, "L'idea che tutto quello a cui ti aggrappi prima o poi dovrà finire" (The idea that everything you cling to will eventually end), emphasizing the struggle against change and the fear of letting go.
Brunori talks to someone he calls "you", and the "you" is plainly himself. The verses list small surrenders: you set out to climb mountains and stop at the first restaurant, "E poi ti fermi al primo ristorante" (And then you stop at the first restaurant), and every calculated risk "Toglie il sapore pure al cioccolato" (Takes the taste out of even chocolate). He spends the whole day drawing a little boat stuck in the middle of the sea and never jumps in.
The chorus names what sits under all of it: "La verità è che ti fa paura l'idea di scomparire" (The truth is that the idea of disappearing scares you). Everything you hold on to will end one day, and you won't give up "quelle quattro, cinque cose a cui non credi neanche più" (those four, five things you don't even believe in anymore). In the middle he offers the way out: pain is as useful as happiness, and dying also serves "a rinascere" (to be reborn).