What is the purpose of the Camino?

Can you tell me, what is the overarching purpose or intention behind the Camino? Is it a spiritual journey, a physical challenge, or perhaps a means of connecting with history and culture? What motivates people to embark on this pilgrimage, and what do they hope to gain from the experience? I'm interested in understanding the deeper significance and symbolism of this journey, and how it fits into the larger context of human exploration and spirituality.