volver a ser
Use volver a + infinitive to say that something becomes again or returns to a state. In the story, "El baile tradicional volvió a ser parte importante de la fiesta" means it became important again. You can reuse this pattern in many situations: "Después de la lluvia, la calle volvió a ser tranquila."
El baile tradicional volvió a ser parte importante de la fiesta.
The traditional dance became an important part of the festival again.
