Asecho literally means "lying in wait" or "an ambush". It's a word you'd normally associate with hunting, not a romantic ballad, which makes its use here so powerful and interesting.
Carla Morrison sings that her lover's scent "me invita al asecho" (invites me to lie in wait). She uses this intense word to describe a deep, primal attraction—a magnetic pull so strong it feels like an instinct she can't resist. It's a poetic way to express an all-consuming desire.
Carla Morrison's "Eres Tú" is a song about being completely overwhelmed by someone. It's not just a crush; it's a full-body obsession that starts the moment she wakes up: "Hoy desperté con ganas de besarte" (Today I woke up wanting to kiss you). She describes this person as intoxicating, a magnetic force that draws her in and makes her feel like her best self. When she's with them, she says, "Todo lo bueno de mí florece" (Everything good in me blossoms).
This feeling is so intense that it's almost physical, a need she feels deep in her body. The person is always on her mind, even if their lives are heading in different directions, as she admits, "Tenemos planes diferentes / Pero tú siempre en mi mente" (We have different plans / But you are always on my mind). The song perfectly describes that feeling of having someone take over your thoughts and senses completely.