Trébol translates to "clover". While a common plant, its use in the phrase "mi trébol de buena suerte" (my good luck clover) is what makes it particularly interesting and endearing in this song.
It's a sweet and unique way to refer to a loved one as a source of good fortune and happiness, elevating a simple word into a powerful term of endearment. This metaphorical use makes it memorable and emotionally resonant.
Pepe Aguilar builds "Mi Credo" around one vow: wherever the person he loves goes, he goes too. He opens with "Por donde vayas iré" [Wherever you go, I will go] and doubles down with "Con una venda en los ojos" [With a blindfold on my eyes] — trust with no conditions attached.
The song keeps borrowing the language of faith to describe romantic devotion: he calls her "mi religión" [my religion] and "mi credo, pedazo de cielo" [my creed, piece of heaven], treating the relationship as something closer to belief than choice. The outro repeats that opening line five times in a row, turning the vow into something closer to a chant than a chorus.