金光明經玄義 2.13

2.13

次觀心三大乘金光明者，諦觀一念之心即空即假即中是三大乘。何者？雖觀一念心，而實有四運，此心迴轉不已，所謂未念、欲念、念、念已。從未念運至欲念，從欲念運至念，從念運至念已。復更起運，運運無窮不知休息，如閉目在舟不覺其疾。觀一運心即空即假即中，一一運心亦復如是，從心至心無不即空即假即中，是則從三諦運至三諦，無不三諦時，是名以運運運。若隨四運，運入生死，若隨三運，運入涅槃。即空之觀，乘於隨乘運到真諦。即假之觀，乘於得乘運到俗諦。即中之觀，乘於理乘運到中諦。三乘即一乘，是乘微妙清淨第一，觀音普賢大人所乘故，故名大乘。是為觀心三大乘金光明。六即如前。

Next is contemplating the mind's three kinds of Mahāyāna as Suvarṇaprabhāsa: clearly contemplating a single thought-moment of the mind as simultaneously empty, conventional, and middle is the three kinds of Mahāyāna. How so? Although one contemplates a single thought-moment of mind, there are actually four movements, this mind revolving unceasingly—namely, not-yet-thought, about-to-think, thinking, and having-thought. From not-yet-thought it moves to about-to-think; from about-to-think it moves to thinking; from thinking it moves to having-thought. Again further movements arise, movement after movement without limit, knowing no rest, like closing one's eyes while aboard a boat, unaware of its speed. Contemplating the mind of a single movement as simultaneously empty, conventional, and middle, each and every movement of the mind is also like this; from mind to mind, none is not simultaneously empty, conventional, and middle. This is moving from the three truths to the three truths; when there is no moment that is not the three truths, this is called using movement to convey movement. If one follows the four movements, one is conveyed into birth and death; if one follows the three movements, one is conveyed into nirvāṇa. The contemplation of emptiness, riding upon the compliant vehicle, conveys one to the ultimate truth. The contemplation of the conventional, riding upon the attained vehicle, conveys one to the conventional truth. The contemplation of the middle, riding upon the principle vehicle, conveys one to the middle truth. The three vehicles are identical to the one vehicle; this vehicle is wondrous, pure, and supreme, ridden by great beings such as Avalokiteśvara and Samantabhadra; therefore it is called the Great Vehicle (Mahāyāna). This is Suvarṇaprabhāsa in contemplating the mind's three kinds of Mahāyāna. The six identities of stages are as before.