The source of music comes from dreams. The composer said that one night in 2008, he went to his dreamland, a dreamland called "Yizhen".

Flying over the rolling valley, when approaching a mountain peak, he encountered the sound of heaven. The sound shined through the layers of light like light. He blended into it and could no longer feel it. To the independent light, independent sound, independent self, an ultimate state.

The composer believes that he has arrived in a real space and that he is sensing music in that space. Because the music was too clean and pure, I initially wanted to call it 'hymn', but I didn't want to have anything to do with existing religions, so I later decided to call it 'song'. In addition to the place name in the dream: ‘Yi Zhen’, this is the origin of “Yi Zhen Shangge”.