首楞嚴義疏注經 1.344

1.344

「若有體者，如汝以手自挃其體，汝所知心為復內出、為從外入？若復內出，還見身中；若從外來，先合見面。」

"If it has substance, then when you poke your body with your hand, does the mind that knows it come out from within, or enter from outside? If it comes out from within, it should see back into your body; if it comes from the outside, it should first see your face."