觀無量壽佛經疏 3.55

3.55

Third, from "divided into fourteen streams" down to "serving as the sand at the bottom," it directly explains that the ponds divide into distinct streams, eddying back and forth without disorder. There are three points: first, it explains the number of channels; second, it explains that the banks of each channel are golden in color; third, it explains that the sand at the bottom of the channels is of the colors of various jewels. The mention of diamond (vajra) refers to the taintless substance.