摩訶止觀 1.92

1.92

「推無生四諦發心」者：法性不異苦集，但迷苦集失法性。如水結為水，無別水也。達苦集無苦集，即會法性。苦集尚是，何況道滅？經言：「煩惱即是菩提，菩提即是煩惱。」是名「推無生四諦上求下化發菩提心」。

"Giving rise to the aspiration by investigating the four truths of non-arising": the dharmatā is not different from suffering and accumulation; it is only through confusion about suffering and accumulation that one loses the dharmatā. It is like water freezing into ice; there is no other water. Realizing that suffering and accumulation are without suffering and accumulation, one immediately tallies with the dharmatā. If even suffering and accumulation are so, how much more so the path and cessation? A sūtra states: "Defilement is bodhi; bodhi is defilement." This is called "giving rise to the bodhicitta by investigating the four truths of non-arising to seek above and transform below."