摩訶止觀 6.179

6.179

作此觀時，泯然清淨，心無依倚，亦不住著，不覺不知；能觀、所觀猶若虛空，不可說示。雖未發真，於四句中決定不執。譬如闇中遙望株杌，不審人杌。人應六分動相，杌無六分，是不動相。久住觀之，心謂是杌，亦不明了。起四句執，即喻動相。動喻無常相，不動喻常。久觀不已，定知是常，不起四執，而無明未破，猶不了了。雖不了了，定知一常一切常，行大直道，無留難故。

When performing this contemplation, it is silently quiescent and pure; the mind has nothing to rely upon and does not abide or attach, without perception or cognition; the contemplator and the contemplated are like empty space, which cannot be spoken of or shown. Although one has not yet brought forth the true, among the four propositions one is definitely unattached. It is, for example, like looking from afar in the dark at a tree stump, uncertain whether it is a person or a stump. A person should have the moving mark of the six limbs; a stump lacks the six limbs, which is an unmoving mark. Observing it for a long time, the mind considers it to be a stump, yet it is still not clearly distinct. Giving rise to attachment to the four propositions is likened to the moving mark: moving is an analogy for the mark of impermanence; unmoving is an analogy for permanence. Having contemplated for a long time without ceasing, one definitely knows it to be permanent and does not give rise to the four attachments; yet avidyā has not been broken, and it is still not clearly apparent. Although not clearly apparent, one definitely knows that one permanence is all permanence, treading the great straight path because there are no obstacles.