This book takes the ancient Silk Road in northwest China as the core of the narrative and spans the long years from the Shang and Zhou dynasties to the Ming and Qing dynasties. Through the fate of camel drivers, merchants, envoys, monks and other people with different identities, it connects a magnificent picture of the integration of civilizations in the wind and sand. From the initial encounter between jade from the Western Regions and silk from the Central Plains, to the Sanskrit sounds from a solitary lamp on the way to the spread of Buddhism eastward, from the diverse dialects in the inn, to the perseverance of culture in the flames of war, every camel bell carries the code for mutual learning among civilizations. This book does not pursue grand narratives, but uses microscopic character stories as its warp and weft. In the collision of gravel and camel hooves and the dialogue between different civilizations, it shows the vitality of ancient roads as "arteries of civilization" and interprets the desire for communication and the brilliance of humanity that cannot be stopped by the wind and sand.