[122] "And how, great king, is a bhikkhu one who guards the doors in the sense faculties (indriya)?
Here, great king, a bhikkhu, having seen a form with the eye, does not grasp at the sign (nimitta) nor grasp at the secondary features (anubyañjana). Since, were he to dwell with the eye faculty unrestrained, evil, unwholesome states of covetousness and grief might flow in upon him, he practices for its restraint; he guards the eye faculty; he attains restraint with regard to the eye faculty.
Having heard a sound with the ear, he does not grasp at the sign nor grasp at the secondary features. Since, were he to dwell with the ear faculty unrestrained, evil, unwholesome states of covetousness and grief might flow in upon him, he practices for its restraint; he guards the ear faculty; he attains restraint with regard to the ear faculty.
Having smelled an odour with the nose, he does not grasp at the sign nor grasp at the secondary features. Since, were he to dwell with the nose faculty unrestrained, evil, unwholesome states of covetousness and grief might flow in upon him, he practices for its restraint; he guards the nose faculty; he attains restraint with regard to the nose faculty.
Having tasted a flavour with the tongue, he does not grasp at the sign nor grasp at the secondary features. Since, were he to dwell with the tongue faculty unrestrained, evil, unwholesome states of covetousness and grief might flow in upon him, he practices for its restraint; he guards the tongue faculty; he attains restraint with regard to the tongue faculty.
Having touched a tangible with the body, he does not grasp at the sign nor grasp at the secondary features. Since, were he to dwell with the body faculty unrestrained, evil, unwholesome states of covetousness and grief might flow in upon him, he practices for its restraint; he guards the body faculty; he attains restraint with regard to the body faculty.
Having cognized a mental object (dhamma) with the mind, he does not grasp at the sign nor grasp at the secondary features. Since, were he to dwell with the mind faculty unrestrained, evil, unwholesome states of covetousness and grief might flow in upon him, he practices for its restraint; he guards the mind faculty; he attains restraint with regard to the mind faculty.
Endowed with this noble restraint of the sense faculties, he experiences within himself an unsullied happiness. Thus indeed, great king, is a bhikkhu one who guards the doors in the sense faculties."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.