One verse

Srimad Bhagavatam 11.22.38

11.22.38

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

dhyāyat
meditating
manaḥ
the mind
anu
regularly
viṣayān
on the sense objects
dṛṣṭān
seen
vā
or
anuśrutān
heard from Vedic authority
atha
subsequently
udyat
rising
sīdat
dissolving
karma-tantram
bound to the reactions of fruitive work
smṛtiḥ
remembrance
tat anu
after that
śāmyati
is destroyed

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.