淨名經集解關中疏 2.541

2.541

"Why is this? In future eras, there will be good men and good women, as well as devas, nāgas, ghosts, spirits, gandharvas, rākṣasas, and others, who arouse the resolve for anuttarā-samyak-saṃbodhi and delight in the Great Dharma. If they are not caused to hear sūtras such as this, they will lose these good benefits. When people of this kind hear these sūtras, they will surely have much faith and joy, arouse a rare mind, receive them upon their heads, and widely expound them in accordance with the benefits that the various sentient beings should attain." / Second, explaining the reason for the entrustment. Because conditions do not align, the Buddha's teaching lies in the future; if they do not hear it, they lose it, and if they hear it, they surely benefit. Therefore, one receives it upon the head and widely expounds it. Sengzhao says: "The obstruction and opening, loss and benefit of the Dharma are like this; therefore, he exhorts Maitreya to receive it upon his head and widely expound it."