When heaven and earth are not separated, there is only sound.
When one sound comes to life, ten thousand sounds begin to sound; when one sound dies, ten thousand sounds fall into silence. The world is born from the intertwining of birth and death, the flow of music and rhythm. The two most primitive powers condensed into two artifacts - Taiyin (main source of sound, the source of ten thousand sounds) and Xiangxiang (main swallowing sound, the tomb of ten thousand sounds). The two are supposed to coexist, disappear once in a lifetime, and maintain the cyclic balance of the rhythm of heaven and earth.
In ancient times, some people were greedy for the power of Taiyin and tried to monopolize both weapons. The war broke out, the rhythms of heaven and earth collapsed, the sound was destroyed and shattered in the battle, and Taiyin sealed itself. From then on, the cycle of birth and death was broken, and the laws of music of heaven and earth were incomplete - only the music of "producing sound" was left in the world, and the power of "swallowing sound" was shattered and lost with the sound of eating. The god-level barrier above the ninth level is not the limit of cultivation, but the price of incomplete laws.
