淨名經集解關中疏 2.17

2.17

所以者何。來者無所從來。去者無所至。所可見者更不可見　釋世妄相見。去來實無。有去來故能令返悟矣。去見准釋王宮應來雙林現去。例可見也。

"'Why is this? One who comes has nowhere from which to come; one who goes has nowhere to go; that which can be seen can no longer be seen'"—explaining worldly deluded seeing of marks; going and coming are truly non-existent. Because there are coming and going, one can be caused to turn back and awaken. 'Gone and seen' is explained accordingly: the response-coming to the royal palace and the manifested departure at the Twin Trees are examples that can be seen.