Glaciar translates to "glacier". It's an evocative word that paints a vivid picture of extreme cold and isolation, which is central to the song's theme.
In "Oscuro P2", the artist uses "glaciar" metaphorically to describe his emotional state: "Estoy encerrado dentro de un glaciar" (I'm trapped inside a glacier). This powerful imagery conveys a sense of being frozen, emotionally distant, and unable to connect, making it a memorable and unique choice for the lyrics.
Asan describes himself as a temperature rather than a mood. The song opens by naming the problem — "Sé que debo ser mejor contigo" (I know I should be better to you) — and then explains it as weather: "Estoy encerrado" (I'm shut in) "Dentro de un glaciar" (inside a glacier), carrying as much snow as Antarctica. The apology "Perdón por todo" (sorry for everything) sits directly beside a confession that he cannot account for any of it, because "Mi frialdad" (my coldness) freezes "Todo lo que toca" (everything it touches). The only warmth on offer is electrical, and it arrives as a warning: "Voy electrizado" (I go around electrified), "Como un Tesla" (like a Tesla), so anyone who crosses him takes the shock.
Then the ice turns into ambition and arrives in the same place. The "Noches de desvelo" (sleepless nights) go to one goal — "Es triunfar" (it's to succeed) — and the next line cancels it: "Sin ti ya no sé que hacer" (without you I don't know what to do any more). Nothing is resolved. After "Si en lo oscuro yo no sé ver" (if I'm in the dark, I can't see), the track repeats "Yo no se ver" (I can't see) five times over and lets the opening lines come back around.