金剛經纂要刊定記 4.212

4.212

玄門。經是故者，由前取法非法皆著我等，故所以勸，令不應即入中道也。

The profound approach. In the sūtra, 'for this reason': Because previously grasping at phenomena and non-phenomena both attached to a self and so forth, it therefore admonishes that one should immediately enter the Middle Way without [grasping].