Qingming Festival (Tomb Sweeping Day) is a traditional Chinese festival during which families pay respect to their ancestors. People visit their ancestors' grave sites and offer food, drinks and flowers. Considered as one of the 24 solar terms on the Chinese lunar calendar, the festival falls on April 4 this year.

CGTN's special series "Mastering Chinese Poetry" prepares a list of Chinese poems that offer clues to Chinese history and culture through ancient expressions. In this episode, we look at one of the classic poems in the history of Chinese literature: The Mourning Day《清明》.