大乘起信論廣釋卷第三．四．五 5.110

5.110

論。若行若住至止觀俱行　釋曰。上顯別修。下明雙運。於中有三。初總標俱行。次顯其行相。後總結雙運。此初也。住謂立也。起謂行也。諸戒中亦應修也。新論此中更有據文總善於此。故彼文云。復次若唯修觀則心不止息多生疑惑不隨順第一義不出生無分別智。是故止觀應兼修行。

[Treatise:] Whether walking, standing, [sitting, or lying down, one should at all times practice calming and contemplation together.]
[Commentary:] The above clarified their separate cultivation. Below clarifies their twin operation. In this there are three [parts]: first, a general indication of practicing them together; next, revealing their active aspects; and finally, a general concluding summary of the twin operation. This is the first. "Standing" means being upright. "Arising" means walking. One should also practice them during all precepts [and postures]. The new translation here also has a textual basis that summarizes the good of this, for that text says: "Furthermore, if one practices contemplation alone, the mind will not be calmed and will generate much doubt, will not accord with the ultimate truth, and will not produce non-conceptual wisdom. Therefore, calming and contemplation should be practiced together."