Arraiga comes from arraigar, meaning “to take root” or “to become deeply established.” In the song, the singer hopes that something of him will arraigar en tu interior, or take root within the other person, creating a vivid metaphor for leaving a lasting emotional impact.
WarCry's "Tan Fácil" is a power ballad about refusing to quit on a dream, sung by someone who half expects to lose anyway. The chorus keeps asking the same question: "Dime por qué" (tell me why) "Es más fácil dudar que creer" (it's easier to doubt than to believe). The singer wants to shout his soul into the wind and plant his hopes in someone else, "Pensando que un día verán la luz del sol" (thinking that one day they'll see the sunlight).
The bridge is pure stubbornness: "Y no, no me rendiré" (and no, I won't surrender), as long as there's a chance left. But he also has an exit plan if it all falls apart. He'll leave "Sin sufrir, sin temer, sin dudar" (without suffering, without fear, without doubt) and simply vanish "Como un sueño al despertar" (like a dream upon waking). It's a good song for learning the Spanish future tense, since half the lyrics are promises: perduraré, partiré, me marcharé, me esfumaré.