Descarga eléctrica literally translates to "electric discharge" or "electric shock". It's a vivid and intense phrase that immediately grabs attention, suggesting a powerful and sudden sensation.
In the context of the song, Amaia uses it to describe the overwhelming feeling she experiences when thinking about or being with the person she misses. "La fuerza de una descarga eléctrica cruza por mi cuerpo" (The force of an electric shock crosses through my body) conveys a strong, almost physical impact of emotion, making it a memorable and evocative choice.
"Quiero Que Vengas" ("I Want You to Come") opens on a visit that already feels like it happened too long ago — "Me visitaste hace dos días" ("You visited me two days ago") and "te echo de menos" ("I miss you") ache almost as one line. Amaia doesn't stay in that ache, though: she wakes up replaying "todas las canciones que escuchamos juntos" ("all the songs we listened to together"), and instead of waiting around, she decides to close the gap herself — "O voy yo, ya voy yo" ("Or I'll go, I'm going already"). The chorus keeps circling back to the same plea, "Quiero que vengas" ("I want you to come"), but by the end it reads less like begging and more like she's already halfway out the door.