Man devotes to preserving 'vivid' Naxi culture

The tour guide believes it is his responsibility to pass it down and let more people know about it

Every day, He Runyuan explains what happiness is to hundreds of tourists.

"Dongba symbols are used by China's Naxi ethnic group and are some of the world's only remaining pictographs. For them, happiness is a steaming hot pot of food," He said. "As it was in the past, having a hot meal means everything."