大乘起信論裂網疏 2.58

2.58

Deluded thoughts of ignorance: their being is non-being. Due to non-awakening, what is non-existent appears as existent, and thus they continue in succession without being left behind. When a cataract is in the eye, flowers in the sky fall in confusion; not seeing one's own head, mad terror arises in vain. But since the ignorance to be cured can ultimately never be found, how could the initial awakening that cures it have an initial mark that can be found!