楞伽阿跋多羅寶經註解 4.207

4.207

恒沙隨流，愚人但見沙流而不見水，以智觀之，非無水也。此喻如來說一切法隨順涅槃，有如順流而非去義，故曰「如來不隨諸去流轉」。謂於法悟性，不隨相轉，故不同去流，以去是生死壞滅之義故也。生死本際等，《入楞伽》云：「生死本際不可得知，既不可知，云何說趣？大慧！趣義是斷，凡愚莫知。」趣即去也。

When Ganges sands flow with the current, foolish people only see the sands flowing and do not see the water; when viewed with wisdom, it is not that there is no water. This illustrates that all dharmas taught by the Tathāgata accord with nirvāṇa, as if flowing with the current, yet do not have the meaning of 'going'; hence it is said, 'The Tathāgata does not drift along with destinations.' This means that awakening to the nature within dharmas, one does not turn according to appearances; hence it is not like the flowing of going, because 'going' has the meaning of the destruction of saṃsāra. Regarding 'the primal limit of saṃsāra', etc., the Ru Lengqie says: 'The primal limit of saṃsāra cannot be known. Since it cannot be known, how could one speak of destinies (gati)? Mahāmati, the meaning of destiny is annihilation, which ordinary fools do not understand.' 'Destiny' (qu) is just 'going' (qu).