After listening to Xu Wei's "Blue Lotus", I feel that the song is ethereal, clear and far-reaching, with a unique artistic conception. So I found the lyrics and listened to them line by line, feeling that my soul was brought to a very high level by the song. It's clearly written in the lyrics, it's the spirit of freedom. Where is the holy place where the blue lotus that Xu Wei is fascinated by is located? It's not stated in the lyrics. But the author knows in his heart that Blue Lotus contains the spirit of freedom that Xu Wei yearns for, and the world of freedom that Xu Wei pursues. The song has a mid-bass range and a mid-treble range, and is composed of one chant and three sighs. When it says, "The moment you lower your head, you discover the path under your feet," the sound is deep, hovering in the mid-bass range. When singing "Through the dark years, I also felt hesitant", the voice walked out of the mid-bass area and steadily advanced towards the high-pitched area. When the song's theme word "Blue Lotus" was sung, Xu Wei's singing drifted upward in vain, with almost "no obstruction", floating higher and higher, as if high into the clouds.