摩訶止觀 10.79

10.79

復次，見惑浩浩，如四十里水；思惑殘勢，如一渧水。前諸方便共治見惑，惑盡名為「入流」，任運不退。見惑難除，巧須方便。《成論》云：「以空治惑。」若空治得入，不俟餘法；若不入者，更設何治？如水中生火，水不能滅；空見起過，空何能治？今知空見苦集之病，然後用諦智治之。

Furthermore, the delusions of view are vast, like forty li of water; the remaining momentum of the delusions of thought is like a single drop of water. The aforementioned various expedient means together cure the delusions of view; when the delusions are exhausted, it is called 'entering the stream', proceeding effortlessly without retrogression. The delusions of view are difficult to eliminate; skillful expedient means are required. The *Satyasiddhi-śāstra* says: 'Cure delusions with emptiness.' If curing by emptiness allows entrance, one does not await other methods; if one does not enter, what further cure can be devised? Just as when fire arises within water, water cannot extinguish it; when the view of emptiness gives rise to faults, how could emptiness cure it? Now, knowing the disease of the suffering and accumulation of the view of emptiness, one thereafter uses the wisdom of the truths to cure it.