duet "la flecha amarilla"

In many, many ways, to walk the Camino is to become a participant in some sort of grand everchanging orchestration that includes the sun and passing clouds, the fellow peregrinos - appearing and vanishing, the cold morning and its hot noon, the next village and following villager...and is there a director to this orchestra? Indeed! the yellow arrow - la flecha amarilla - in its ten thousand manifestations.