觀無量壽佛經義疏 3.28

3.28

「『幢上寶幔如夜摩天宮。』」夜摩，即欲界第三空居天。彼天華光莊嚴最勝，故多取為比。三、珠光，四：初、示數；二、珠光；三、光色；四、其色變現。初、示數。

"‘The jeweled curtains upon the banners are like the palace of the Yāma Deva.’" Yāma refers to the third sky-dwelling heaven of the desire realm. Because the flower-light adornments of that heaven are the most sublime, it is frequently taken as a comparison. Third, the pearl light, which has four parts: first, indicating the number; second, the light of the pearls; third, the colors of the light; fourth, the transformations of the colors. First, indicating the number.