Rayando comes from the verb rayar, which literally means "to scratch" or "to graze". It's a fascinating word choice for the song's iconic title, "Rayando el Sol" (Grazing the Sun).
In the song, this phrase is used poetically to describe staying up all night in despair, waiting until the first rays of dawn appear to "scratch" the horizon. It paints a powerful picture of sleepless nights and a desperate, endless longing for a lost love.
Mexican rock band Maná brings serious drama to this track about being left on read before smartphones even existed. The narrator is spiraling because the person he loves vanished without calling: "No me has llamado, estoy desesperado" ("You haven't called me, I am desperate"). He hunts for her all over town, checking her house, the park, the plaza, and even the movie theater ("En el parque, en la plaza, en el cine te busqué"). The heartbreak is so overwhelming that he delivers one of the most famously dramatic lines in Latin rock: "Es más fácil llegar al sol, que a tu corazón" ("It is easier to reach the sun than your heart").
The title phrase "Rayando el sol" comes from the Spanish idiom al rayar el sol, which means right at the crack of dawn when the first rays scratch across the sky. But here, the singer twists it into a verb for his own misery. He stays up crying through countless nights ("Son muchas lunas las que te he llorado" [It has been many moons that I have cried for you]) and watches the day break while pacing the floor. He is literally "scratching the sun" out of sheer desperation, stuck in limbo while his love stays completely out of reach.