Fantasear means 'to fantasize' or 'to dream'. It's a beautiful and evocative verb that captures a sense of imagination and longing, making it quite memorable.
In the song, Aitana sings, "A soñar con Akureyri y fantasear" (To dream of Akureyri and fantasize). This word perfectly encapsulates the dreamy, romantic mood of the song, where the singer is lost in thoughts of a loved one and a faraway place, imagining a future together.
This song is about a beautiful, bittersweet night that feels like it's happening outside of time. Aitana and Sebastián Yatra sing about a connection that's deep but temporary. They create a cozy world for just one evening, with lines like, "Mi cama en tu sofá / Tu brazo de almohada me acompañará" (My bed on your sofa / Your arm will be my pillow). It's a perfect picture of finding comfort in a simple, intimate moment.
They know it has to end. The whole song is a fantasy about escaping to Akureyri, a city in Iceland, to see the Northern Lights. They dream of a future together, "y olvidar / Que mañana despierto y no estás más" (and forget / that tomorrow I'll wake up and you'll be gone). Even when they're looking at the sky, "Esperando una aurora que no llega" (Waiting for an aurora that doesn't arrive), they decide it doesn't matter. The other person is all the light they need. It's a sad song, but it's also full of warmth for a memory that will last, even if the relationship didn't.