大乘起信論略述 1.143

1.143

論。以心生至種種法滅故　述曰。此結釋所以也。謂有問言。何故境界依心而住唯心虛妄所顯現耶。釋所以云。以無明力不覺心動乃至能現一切境等。故言心生種種法生。此即妄動而言生也。若彼無明妄心滅者境界隨滅。境界滅故諸分別識皆滅無餘。故言心滅種種法滅。此即心源還靜故云滅也。既說此心雖於不覺妄諸法。即驗諸法唯心無體。

Treatise: Because when mind arises... various phenomena cease.
Commentary: This concludes and explains the reason. It means there is a question: "Why do sense-realms abide relying on mind and are only manifested by mental falsity?" Explaining the reason, it says: Due to the power of avidyā, non-awakening causes the mind to stir, and so on, up to being able to manifest all sense-realms; therefore it is said that when the mind arises, various phenomena arise. This speaks of arising in terms of deluded stirring. If that avidyā and deluded mind cease, the sense-realms cease along with them; because the sense-realms cease, the discriminating consciousnesses all cease without remainder. Therefore it is said that when the mind ceases, various phenomena cease. This speaks of cessation in terms of the source of mind returning to stillness. Since it is said that although this mind falsely [produces] all phenomena in non-awakening, this proves that all phenomena are only mind and have no essence.