摩訶止觀 6.90

6.90

三、智慧猛利：若入空時，即知空中有棄他之過。何以故？若住於空，則無淨佛國土、教化眾生、具足佛法，皆不能辦。既知過已，非空入假。

Third, sharp and fierce wisdom: when entering emptiness, one immediately knows the fault of abandoning others within emptiness. Why is this? If one abides in emptiness, purifying Buddha-lands, teaching and transforming sentient beings, and fully endowing the Buddha-dharmas—none of these can be accomplished. Having recognized the fault, one does not [stay in] emptiness and enters the provisional.