大乘起信論略述 2.60

2.60

論。熱惱衰變則不自在　述曰。此則對顯性德無遷義。此亦應言。若心有動熱惱衰變。則不自在。心性無動。即是清涼不變自在義也。諸惑燒心故名熱惱。妄染遷故則名衰變。業果繫縛是不自在。心性不動則無此義。故說真如清涼不變自在義也。

[Treatise:] Fevered affliction and decay-transformation, and thus not sovereign.
[Exposition:] This reveals through contrast the meaning of the nature's virtues having no alteration. Here too it should say: If the mind has movement, it has fevered affliction and decay-transformation, and thus is not sovereign; because the mind-nature is free from movement, it has the meaning of being cool, unchanging, and sovereign. Afflictions burn the mind, hence called 'fevered affliction.' Deluded defilements change, hence called 'decay-transformation.' Being bound by karmic fruits is being non-sovereign. The mind-nature being unmoving lacks these meanings, so suchness is said to have the meaning of being cool, unchanging, and sovereign.