四分律行事鈔資持記 3.230

3.230

從用二句，應具四句，俱重俱輕，舉事配之可解。事重，事即物體。用輕謂資身助道，用重謂恣情廢業。

The two lines on 'according to use' should contain four lines: both heavy and both light, which can be understood by citing matters to match them. Weighty in substance: substance is the physical item. Light in use means supporting the body and assisting the Path; heavy in use means indulging desire and abandoning the enterprise.