大乘起信論義記 2.275

2.275

前中言是故者，是前一心隨無明動作五種識故，故說三界唯心轉也。此心隨熏現似曰虛，隱其虛體詐現實狀曰偽，虛偽之狀雖有種種，然窮其因緣，唯心作也。《十地經》中亦同此說。離彼現識則無塵境，反驗六塵唯是一心，故云離心則無等也。

In the first, the phrase "therefore" means that because the aforementioned One Mind follows avidyā and stirs to produce the five kinds of consciousness, it is therefore said that the three realms evolve only from the mind. This mind, following perfuming, manifests semblances, which is called "false"; concealing its false substance, it deceptively manifests actual appearances, which is called "deceptive". Although the false and deceptive appearances are of various kinds, when their causes and conditions are investigated, they are made only by the mind. The Daśabhūmikasūtra also states the same. Apart from that manifesting consciousness, there are no dust-objects; inversely verifying that the six dusts are only the One Mind, it therefore says "apart from the mind, there are no...", and so forth.