釋禪波羅蜜次第法門 6.110

6.110

約修方便論支正應如此，佛意難知，既無的文，不可定判。或是證空定時，於空定中義立五支。何以故？經亦說言：「五支為因，第六默然心為定體。」今約修空立支隱顯，明因果體用，如似不便。若約證空定時，義立五支，亦復宛然，似如可見，深推自解，不煩多釋。

Discussing factors in terms of the expedient means of cultivation should indeed be like this. The Buddha's intent is difficult to fathom, and since there is no definitive text, it cannot be conclusively determined. Or perhaps upon realizing the space absorption, five factors are conventionally established within the space absorption. Why? The sūtra also states: 'Five factors serve as the cause, and the sixth, the silent mind, is the absorption's essence.' Now, establishing factors based on cultivating space, with their concealment and manifestation, to explain cause and effect, essence and function, seems rather awkward. If one conventionally establishes five factors based on the time of realizing the space absorption, it is also vividly apparent and seems discernible; with deep deduction, one will understand it oneself without needing extensive explanation.