Explain Macchu Picchu appears in The Heights of Macchu Picchu

In the 1940's, Neruda undertook a pilgrimage to Macchu Picchu, and the trip had an indelible effect on him. In Canto General, the 12-part poem entitled The Heights of Macchu Picchu was published. It is a journey of one man's spiritual ascension from the base of the mountain to the top, and the events that occur within him along the way. In this work, Neruda was portraying not just himself, but also the common man and the everyman, as his personal hopes transcend into a global hope, saying that we can find peace if we can connect somehow with our ancient past.