Sortija translates to "ring," but it's a less common and more poetic word than the everyday "anillo."
In the context of the song, the artist uses sortija metaphorically to refer to his mother, saying, "pero tú eres mi sortija" (but you are my ring). This implies that his mother is precious, valuable, and a constant, cherished presence in his life, much like a treasured ring. This unique and affectionate use of the word makes it particularly interesting.
Polo González's "Soy Bien Vivo" is a fun, upbeat track about being a smart and resourceful person who's come a long way. He starts by saying, "soy bien vivo a lo que caiga le atoró" [I'm very lively, I tackle whatever comes my way], showing he's ready for anything. He remembers a time when he "no tenía nada había quienes se burlaban" [had nothing, there were those who mocked him] and he "tenía ganas de una troca pero en bicicleta andaba" [wanted a truck but rode a bicycle].
Now, he's enjoying the good life, driving his "troca tumbada" [lowered truck] and hanging out with his friends, his "clicka." He's grateful for his family, especially his grandparents who gave him "todos sus buenos consejos" [all their good advice], and his mom, "mi que pita gracias por darme la vida" [my mom, thanks for giving me life]. He makes it clear that he's worked hard for what he has, saying, "siempre le chingado duro para tener buenas cosas" [I've always worked hard to have good things]. It's a song about staying true to yourself, remembering where you came from, and enjoying the fruits of your labor!