金剛三昧經論 2.73

2.73

論曰：是答正廣本利之義。於中有二：先標、後釋。諸佛如來常以一覺者，是標能化之本。而轉諸識入唵摩羅者，是標所化之轉。釋中有二：正釋、轉釋。正釋中言一切眾生本覺者，釋前能化之本一覺。一切眾生同一本覺，故言一覺。諸佛體此乃能普化，故言常以。以此本覺令他覺故，故言常以一覺覺諸眾生。令彼眾生皆得本覺者，是釋所化轉入之句，本覺正是唵摩羅識。得本覺者，是釋入義。入本覺時，覺諸八識本來寂滅。覺究竟故諸識不生，故言諸識寂滅無生。是句正釋轉諸識句。此文具顯本始二覺，謂一切眾生本覺等者是本覺義，覺諸情識寂滅無生者是始覺義，是顯始覺即同本覺也。何以故下，第二轉釋，釋前始覺所覺寂滅。雖諸八識隨緣動轉，而求定性皆無所得，故言決定本性本無有動。本無動故，本寂滅也。

The commentary says: This answers and directly elaborates the meaning of the original benefit. Within it there are two [parts]: first, the statement; second, the explanation.
'All Buddhas, Tathāgatas, constantly use the single awakening' states the origin of that which can transform.
'To transform the various consciousnesses so that they enter the amala' states the transformation of that which is transformed.
Within the explanation there are two: the direct explanation and the further explanation.
Within the direct explanation, 'the innate awakening of all sentient beings' explains the previous origin of that which can transform, the 'single awakening.' All sentient beings share the same innate awakening; hence it is called 'single awakening.' All Buddhas embody this and are thus able to universally transform [beings]; hence it says 'constantly use.' Because they use this innate awakening to cause others to awaken, it says 'constantly uses the single awakening to awaken all sentient beings.'
'Causing those sentient beings to all attain innate awakening' explains the line about the transformed beings entering. Innate awakening is precisely the amala consciousness. Attaining innate awakening explains the meaning of 'entering.' When one enters innate awakening, one awakens to the fact that the eight consciousnesses are originally tranquil and extinguished. Because the awakening is ultimate, the consciousnesses do not arise; hence it says 'the various consciousnesses are tranquil, extinguished, and unarisen.' This line directly explains the line 'to transform the various consciousnesses.' This passage fully reveals both innate awakening and initial awakening: 'the innate awakening of all sentient beings, etc.' is the meaning of innate awakening, while 'awakening to the fact that all conscious minds are tranquil, extinguished, and unarisen' is the meaning of initial awakening. This shows that initial awakening is identical to innate awakening.
From 'Why is this?' onwards is the second further explanation, which explains what the aforementioned initial awakening awakens to: tranquility and extinction. Although the eight consciousnesses stir and transform in accordance with conditions, when seeking a determinate nature, none can be found; hence it says, 'the determinate fundamental nature is originally without any movement.' Because it is originally unmoving, it is originally tranquil and extinguished.