Old cartographers spoke of the cloud passage, a route that circumnavigated the globe across land, sea and air but would never remain fixed. Explorers could only follow the passage by chasing the cloud-train, a particular slow-moving stretch of clouds two hundred miles long and twenty miles wide that weaved through the sky. Many folks across the world had sketched portions of the train, trying to capture its majestic beauty across an effervescent terrain. However, none had rode it from beginning to end for it had neither. Thus, the passage was quite attractive to both the nomadic and the itinerant, those who wandered for a living and those who wanted to move on in life.