大方廣圓覺修多羅了義經略疏 2.240

2.240

此初一段未入信位，所以有此文者，不約凡迷即無位地。故先標此翻之彰信，即論文翻四相成四位之謂也。

This initial section has not yet entered the faith stages. The reason this text appears is that if one does not refer to ordinary delusion, there are no stages. Therefore, this is first pointed out and reversed to manifest faith, which is what the *Treatise* means by reversing the four marks to establish the four stages.