Policio comes from the verb "policiar," meaning "to police" or "to control." It's an interesting and somewhat uncommon word in everyday song lyrics, making it stand out.
In the song, the line "Me policio sem razão" (I police myself without reason) reveals a deep internal struggle. The singer is trying to control their emotions and actions, even when there's no logical reason to do so, highlighting a sense of self-imposed restraint and inner conflict.
"Ta Faltando Eu" points the missing-person plot inward: the "someone" the hook says is missing turns out to be the singer's own sense of himself. Gusttavo Lima spends the verses cataloguing things that cannot hold their shape - "A lava que já foi vulcão" [the lava that was once a volcano], "É um iceberg dentro de mim" [is an iceberg inside me] - and lands on the plainest image of the song for why: "Castelo de areia sempre cai" [A sand castle always falls].
That admission is what the repeated close is really asking for. "Espero que quando eu me ver" [I hope that when I finally see myself], "E acordar não seja tarde" [waking up won't be too late] turns a stadium-sized chorus into a much smaller, more honest request - not for someone else's return, but for his own, before it's too late to change course. Released on the live "Buteco do Gusttavo" set, the song keeps its festa-ready hook while the words underneath are doing something quieter.