"Mountain Ghost" comes from the ninth song of "Nine Songs". "Nine Songs" is a set of songs for worshiping gods. It is said that Qu Yuan modified it on the basis of folk songs for worshiping gods. "Mountain ghosts" are commonly known as mountain gods. Because they have not been officially canonized by the Emperor of Heaven and are among the righteous gods, they are still called "mountain ghosts".
The wind rustles and the trees rustle,
I miss you, but I am worried about you. ——Qu Yuan's "Mountain Ghost"