觀無量壽佛經疏 3.27

3.27

言金繩已下，正明黃金作道，狀似金繩也。或以雜寶為地，瑠璃作道。或以瑠璃為地，白玉作道。或以紫金白銀為地，百寶作道。或以不可說寶為地，還以不可說寶作道。或以千萬寶為地，二三寶作道。如是轉相間雜，轉共合成，轉相照曜，轉相顯發，光光色色各各不同，而無雜亂。行者等莫言但有金道，而無餘寶作道也。

The words "with golden cords" and below directly explain that yellow gold forms the pathways, which resemble golden cords. Or mingled jewels form the ground and lapis lazuli forms the paths; or lapis lazuli forms the ground and white jade forms the paths; or purple gold and white silver form the ground and a hundred jewels form the paths; or inexpressible jewels form the ground and inexpressible jewels likewise form the paths; or thousands of myriad jewels form the ground and two or three jewels form the paths. In this way, they alternate and intermingle, mutually combine, illuminate each other, and display each other. Each light and color is distinct, yet without confusion. Practitioners must not say that there are only golden pathways and no paths made of other jewels.