One verse

Srimad Bhagavatam 11.28.3

11.28.3

तैजसे निद्रयापन्ने पिण्डस्थो नष्टचेतन: । मायां प्राप्नोति मृत्युं वा तद्वन्नानार्थद‍ृक् पुमान् ॥ ३ ॥

taijase nidrayāpanne piṇḍa-stho naṣṭa-cetanaḥ māyāṁ prāpnoti mṛtyuṁ vā tadvan nānārtha-dṛk pumān

taijase
when the senses, which are the products of false ego in the mode of passion
nidrayā
by sleep
āpanne
are overcome
piṇḍa
in the shell of the material body
sthaḥ
(the soul) who is situated
naṣṭa-cetanaḥ
having lost his consciousness
māyām
the illusion of dreaming
prāpnoti
he experiences
mṛtyum
the deathlike condition of deep sleep
vā
or
tadvat
in the same way
nānā-artha
in terms of material varieties
dṛk
who sees
pumān
a person

Just as the embodied spirit soul loses external consciousness when his senses are overcome by the illusion of dreaming or the deathlike state of deep sleep, so a person experiencing material duality must encounter illusion and death.