說無垢稱經疏 3.166

3.166

贊曰：動者亂動。真實邊際，名為實際，無倒所緣義。空理義云：俗有所動，不住實際；真無所動，故住實際。俗依六境，故法動搖；真如不依六，故無動搖。動搖者，可壞可毀可倒。應理義云：依他住真際，隨於實際，竟不動故。古云「諸邊不動」者，諸邊執見不能動故。依他亦無動搖，隨於真如，不依六境故。

Commentary: ‘Disturbed’ means chaotic movement. The boundary of reality is called the ‘actual limit’ (bhūtakoṭi), in the sense of an non-erroneous cognitive object. According to the principle of emptiness: the conventional has disturbance and does not abide in the actual limit; the ultimate has no disturbance, and thus abides in the actual limit. The conventional relies on the six sense-objects, so phenomena fluctuate; tathatā does not rely on the six, so it does not fluctuate. ‘Fluctuating’ means perishable, destructible, and subvertible. According to the principle of the reasonable: the dependent abides in the real limit, following the actual limit, never moving. The ancients said: ‘not moved by the extremes,’ meaning that extreme clinging views cannot move it. The dependent also does not fluctuate, for following tathatā, it does not rely on the six sense-objects.