首楞嚴義疏注經 2.527

2.527

若此雜相不可見者，應亦不見明相，云何現見於明？若此雜相即可見者，雜中有見，應合見見。

If this mixed mark cannot be seen, you should also not see the mark of light; how then do you presently see light? If this mixed mark can be seen, since seeing is within the mixture, you should also see seeing.