觀無量壽佛經義疏 3.27

3.27

「『於其臺上自然而有四柱寶幢，一一寶幢如百千萬億須彌。』」即上臺面四向立柱，上擎網幔以覆佛頂。二、明寶幔。

"‘Upon that calyx, there naturally stand four jeweled banner pillars, each jeweled banner being like a hundred thousand kotis of Sumerus.’" That is, four pillars stand facing the four directions on the surface of the calyx, supporting the nets and curtains above to cover the Buddha's crown. Second, explaining the jeweled curtains.