"Monks, you should dwell with the doors to your senses well-guarded.On seeing a form with the eye, do not grasp at any theme or details by which — if you were to dwell without restraint over the faculty of the eye — evil, unskillful qualities such as greed or distress might assail you. Practice for its restraint. Guard the faculty of the eye. Secure your restraint with regard to the faculty of the eye."