Supersticioso means "superstitious." It's an interesting word because it touches on beliefs and fate, which are common themes in romantic songs but not always explicitly stated with this particular word.
In the song, the singer admits, "Yo que nada tengo de supersticioso, creo que al verte empecé a dudar" (I, who am not at all superstitious, believe that upon seeing you I began to doubt). This line beautifully captures the idea that meeting this person is so impactful it makes him question his rational worldview, suggesting a deeper, fated connection.
Have you ever met someone and just known it was more than a coincidence? That's exactly the feeling Andrés Cepeda is singing about in "No Es Casual"! He meets someone and immediately feels this strong connection, even though the timing is terrible. He's just passing through the city, the night isn't long enough, and the only place open is his hotel. Talk about bad luck!
But despite all these obstacles, he can't shake the feeling that this meeting is special. He wonders if this person could be "la mujer de mi vida, el amor de verdad" [the woman of my life, true love]. He admits he's not usually superstitious, but seeing her makes him doubt everything he thought he knew. He keeps asking, "Dime si no sientes lo mismo que siento" [Tell me if you don't feel the same as I do], because he's convinced that "Encontrarnos en este momento no es casual" [Meeting in this moment is not casual]. It's a really sweet and hopeful song about believing in fate when you least expect it!