大乘起信論義記 3.130

3.130

In this there are the dharma, the metaphor, and the application. The dharma only explains that completion is attained when cause and condition are fulfilled, omitting the failure when they are not fulfilled. The metaphor specifically explains the failure when conditions are not fulfilled, omitting attainment when conditions are fulfilled. The application explains both meanings together. The dharma and the metaphor can be understood.