大乘起信論略述 1.86

1.86

論。又心起者至即謂無念　述曰。此重釋前義遣外疑也。恐聞前說覺心初起疑有初心是可覺知。故此釋云。前說覺心初起相者。無有初相是可覺知。而言覺心初起相者。覺初念心即無念起。其初動心本來靜故。

[Treatise:] "Again, if a mind arises… it is termed thoughtlessness."

Commentary: This re-explains the preceding meaning to dispel external doubts. Fearing that hearing the previous statement, "awakening to the mind's initial arising," might lead to the doubt that there is an initial mind that can be awakened to and known, this explanation is given: when it previously said "awakening to the phase of the mind's initial arising," there is no initial phase that can be awakened to and known. Speaking of "awakening to the phase of the mind's initial arising" means awakening to the fact that the mind of the initial thought is itself without the arising of thought, because that initially stirred mind is originally tranquil.