The Subtle Hidden Delusion of the Aggregate of Volitional Formations in the Tenth Volume of the *Shurangama Sutra*

Original text:化理不住。运运密移。甲长发生。气销容皱。日夜相代。曾无觉悟。阿难。此若非汝。云何体迁。如必是真。汝何无觉。则汝诸行。念念不停。名为幽隐。第四妄想。

Explanation: The changes of the body have never ceased; moment by moment they are secretly moving and shifting. For example, the fingernails grow, the hair sprouts, the vital energy wanes, the countenance wrinkles; the body's various functions are renewed and replaced day and night, yet one has never been aware of it. Ānanda, if this aggregate of volitional formations were not you, why would your body undergo change? If this aggregate of volitional formations were truly you, why have you not awakened to it or noticed it? Therefore, all of your aggregate of volitional formations, which continues without pause from thought-moment to thought-moment, is called the fourth subtle and hidden false thought.