China's Xizang Autonomous Region, the beautiful and mysterious "Roof of the World," is renowned for its magnificent natural scenery, precious natural resources and unique ethnic customs. A group of envoys, experts, scholars, media representatives and volunteers recently completed a journey to Nyingchi and Lhasa in Xizang. During their visit, they witnessed firsthand the genuine essence of Xizang, gaining insights into its economic and social development, ecological conservation, cultural heritage preservation, and the improvement of people's livelihoods. Let's see what they have seen and heard, what new understandings they have gained about Xizang, and what new insights they have received about the development of culture, ecology, economy and other aspects in this region. CGTN reporter Jessica Zang invited guests from home and abroad to discuss whether they have entered a new era of openness, modernization and high-quality development.