妙法蓮華經玄義 7.84

7.84

四、本感應妙者，經云：「若有眾生來至我所，我以佛眼觀其信等諸根利鈍。」眾生來至者，感扣法身也。我以佛眼觀者，慈悲往應也。諸根利鈍者，十法界冥顯欣厭不同也。此指本時證二十五三昧感應，非迹中感應也。迹應多種：或言一日三時，入定觀可度機，此三藏佛照分段穢國九法界機，析空感應也。或言即俗而真，不須入出，任運能知，此通佛照分段淨國九法界機，體空感應也。或言用王三昧，歷別照十法界機，此別佛照方便有餘土，次第感應也。或言王三昧，一時照十法界機，此圓佛照十法界寂光土機，圓感應也。

Fourth, explaining the wonderfulness of the original stimulus and response: The sūtra states: 'If there are sentient beings who come to my place, with the buddha-eye I observe their faculties such as faith, whether sharp or dull.' Sentient beings coming is the stimulus knocking at the dharma-kāya. My observing with the buddha-eye is compassion going forth to respond. The sharpness or dullness of their faculties refers to the differing hidden and manifest, joy and revulsion, across the ten dharma realms. This refers to the stimulus and response realized through the twenty-five samādhis at the original time, not the stimulus and response in the traces. Trace responses are of many kinds: Some say that at three periods during the day [the Buddha] enters samādhi to observe the capacities that can be saved; this is the Tripiṭaka Buddha illuminating the capacities of the nine dharma realms in the defiled lands of segmented [birth and death], the stimulus and response of analyzing emptiness. Some say that samsāra is identical to truth, without need of entering or emerging, knowing naturally; this is the shared Buddha illuminating the capacities of the nine dharma realms in the pure lands of segmented [birth and death], the stimulus and response of embodying emptiness. Some say that using the kingly samādhi he illuminates the capacities of the ten dharma realms separately and successively; this is the distinctive Buddha illuminating the land of expedient means with remainder, the gradual stimulus and response. Some say that with the kingly samādhi he simultaneously illuminates the capacities of the ten dharma realms; this is the perfect Buddha illuminating the capacities of the Quiescent Light land of the ten dharma realms, the perfect stimulus and response.