摩訶止觀 10.64

10.64

思議境者，空見出生十法界法。胡瓜非熱，能為病因；空非十界，能作因緣。《成論》云：「剎那邊見心起，即是不善。」《毘曇》明剎那邊見心起，不當善惡，名為「無記」。因等起心，一切善惡因之而起。今此空見亦有二義。若別觀者，如因等起，十法界因之而生。所以者何？昔未空見，未曾為行；今發空見，即有三行，如前說。

Regarding the conceivable realm: the view of emptiness gives birth to the phenomena of the ten dharma realms. A cucumber is not hot, yet it can be the cause of disease; emptiness is not the ten realms, yet it can act as the condition. The Tattvasiddhi says: "When the thought of an extreme view arises for a kṣaṇa, it is immediately unwholesome." The Abhidharma clarifies that when the thought of an extreme view arises for a kṣaṇa, it does not correspond to good or evil, and is named "indeterminate." Because of the mind of equal arising, all good and evil arise from it. Now this view of emptiness also has two meanings. If contemplated distinctly, like the equal arising of causes, the ten dharma realms are born from it. Why is this? Formerly, without the view of emptiness, one never practiced; now that the view of emptiness has arisen, there are the three types of practice, as explained before.