"Yun Gong Xun Yin" is the opening theme song of the TV series "Journey to the West". It was composed by Xu Jingqing and included in the original soundtrack album "Journey to the West TV Series Soundtrack" released on September 25, 1986. The song had no title at first and has always been called "Journey to the West Overture" or "Prelude". "Yungong Xunyin" was picked up by netizens many years after the TV series was aired and was approved by Xu Jingqing.

Theme is the soul of film and television works, and it is also the meaning presented by film and television works. Without the theme, the audience would not know what is being said and what kind of emotions are being expressed. "Yun Gong Xun Yin" is the theme music. It not only allows people to feel the overall style of this TV series, but also appears many times in the drama to connect the plot. The addition of novel tunes also makes people feel the charm of the mythological drama even more.

Because there are no lyrics, the audience needs to combine visual and auditory associations to make associations. This is obviously not advantageous for revealing the plot, but the sound effects at the beginning are straight to the point and combined with the association of the original work, pulling the plot together. It was the beginning of the entire film and television production.