Śrīmad-Bhāgavatam · Text 11.22.38
Who is speaking and story frame
ध्यायन् मनोऽनु विषयान् दृष्टान् वानुश्रुतानथ ।
उद्यत् सीदत् कर्मतन्त्रं स्मृतिस्तदनु शाम्यति ॥ ३८ ॥
dhyāyan mano ’nu viṣayān
dṛṣṭān vānuśrutān atha
udyat sīdat karma-tantraṁ
smṛtis tad anu śāmyati
The mind, bound to the reactions of fruitive work, always meditates on the objects of the senses, both those that are seen in this world and those that are heard about from Vedic authority. Consequently, the mind appears to come into being and to suffer annihilation along with its objects of perception, and thus its ability to distinguish past and future is lost.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.