A Dialogue with ancient sages on Tomb-Sweeping Day 

何为思念？

每个人心中答案各有不同。在已有两千五百多年历史的中国传统节日——清明节，我们来到中国郑州，在中华文明开始的地方，步入时空的隧道，探望华夏人文始祖轩辕黄帝，拜访出生于此的古代大文豪，以思念之名，来一场跨越时空的对话！

What does longing mean? Different people have their own answers for this question. On Tomb-Sweeping Day, a Chinese festival with a history going back more than 2,500 years, we are in Zhengzhou, China, a city where Chinese civilization started, to learn something about the Yellow Emperor, the ancestor of Chinese nation, and some great writers who originated from ancient Zhengzhou. Let's ask the great writers in ancient China what they consider the meaning of longing!