金光明經文句記 4.161

4.161

二、「水火」下，明假想境，二：初、正釋相，二：初、釋散滅壞時；二、釋大小不淨。能破欲情，令正觀立，故名助道。

Second, from 'Water and fire...' onward, clarifying the sphere of provisional visualization, in two parts: first, directly explaining the characteristics, in two parts: first, explaining the time of scattering, extinction, and destruction; second, explaining the minor and major impurites. Being able to destroy sensual desire and cause the correct contemplation to be established, it is therefore called an auxiliary to the path.