大乘起信論別記 1.113

1.113

As for "evolving consciousness" (pravṛttivijñāna): this is the characteristic of the perceiver, evolving by taking objects as its condition, hence called "evolving consciousness." However, evolving consciousness has two senses: if one speaks of the perceiver set in motion by avidyā as evolving consciousness, it resides in the ālayavijñāna; if one speaks of the perceiver set in motion by external objects as evolving consciousness, this refers to the seven consciousnesses. The two meanings are not the same and must not be confused. Furthermore, other places state that all perceivers are generically named evolving consciousness, which then applies to all eight consciousnesses. Now, the evolving characteristic here refers to the first meaning.