觀無量壽佛經疏 3.29

3.29

五、從八種清風下，至無我之音已來，正明光變樂音，轉成說法之相。即有其三。一明八風從光而出。二明風光即出即鼓樂發音。三明顯說四倒四真恒沙等法。讚云：「安樂國清淨，常轉無垢輪，一念及一時，利益諸群生。讚佛諸功德，無有分別心，能令速滿足，功德大寶海。」

Fifth, from "eight kinds of pure breezes" down to "sounds of no-self," it directly explains the light transforming into musical sounds, which in turn become the aspect of expounding the Dharma. Here there are three points: first, it explains that the eight breezes issue from the light; second, it explains that as the breezes and light issue forth, they immediately play the instruments and produce sounds; third, it explains that they clearly expound the four inversions, the four truths, and teachings as numerous as the sands of the Ganges. A praise says:
"The Land of Peace and Bliss is pure;
Constantly turning the stainless wheel,
In a single thought and at all times,
It benefits the multitude of beings.
Praising all the Buddha's virtues,
Free of discriminating thoughts,
It can cause one quickly to fulfill
The great jewel-ocean of virtues."