大方廣佛華嚴經願行觀門骨目 2.36

2.36

（卷五十五）有十種發無量無邊廣大心，於一切佛所觀一切眾生界，觀一切剎一切世一切法界，觀察一切法皆如虛空、一切菩薩廣大行、正念三世一切佛，觀不思議諸業果報、嚴淨一切佛剎、遍入一切諸佛大會，觀察一切如來妙音（皆云發廣大心）。

(Fascicle 55) There are ten kinds of generating the measureless, boundless, vast mind: contemplating the realms of all sentient beings in the presence of all Buddhas; contemplating all lands, all worlds, and all dharmadhātus; contemplating all dharmas as like empty space; the vast practices of all bodhisattvas; mindfully recalling all Buddhas of the three periods of time; contemplating the inconceivable retributions of karmic actions; adorning and purifying all Buddha-kṣetras; ubiquitously entering the great assemblies of all Buddhas; and contemplating the wondrous voices of all Tathāgatas (each phrase states generating the vast mind).