大方廣圓覺修多羅了義經略疏 2.669

2.669

示修習者修此二十五輪之時，於事中威儀、法式及用心方便，三業事理，具足修習之意。

This shows that when cultivators practice these twenty-five wheels, their deportment and ritual formulas in active affairs, as well as the skillful means of their mental application, completely cultivate the principle and phenomena of the three karmas.