The beginning of Genesis in the Bible speaks of: God created all living beings and made light on the first day. At first, the earth was empty and chaotic, the abyss was dark, and the Spirit of God was running on the water. God said, there must be light! There is light. The Qinghai-Tibet Plateau, with an average elevation of over 4,000 meters, is the closest place on Earth to the sky. Although the air here is scarce and unsuitable for survival, the bright sunshine and the holy mountains and lakes here still nurture all living creatures, as well as a strong and great ethical group---Tibetan. They use the most persistent belief from hearts to guard the pure land in the process of human civilization. They use their lives to create a broad and profound historical culture, like the light of the sky, brilliant and glorious. Han Yuchen, a light chaser from the East. He devoted all the emotions in his heart to this place and created a series of excellent oil paintings with the sincerest reverence and worship. The intensive refraction of light and shadow in the work collides with our visions and stings our souls. The ordinary and noble characters living on the roof of the world, telling us the stories of love and faith, kindness and redemption, forbearance and sublimation, give us the enlightenment and the power of life. From this we found the complexity of life, the comfort of the soul, and return to simple joy. The following stories not only recorded the journey of Han Yuchen's creative journeys, but also the discovery and exploration of Tibetan customs, and the pursuit for holy light.