One verse

Srimad Bhagavatam 11.10.3

11.10.3

सुप्तस्य विषयालोको ध्यायतो वा मनोरथ: । नानात्मकत्वाद् विफलस्तथा भेदात्मधीर्गुणै: ॥ ३ ॥

suptasya viṣayāloko dhyāyato vā manorathaḥ nānātmakatvād viphalas tathā bhedātma-dhīr guṇaiḥ

suptasya
of one who is sleeping
viṣaya
sense gratification
ālokaḥ
seeing
dhyāyataḥ
of one who is meditating
vā
or
manaḥ-rathaḥ
merely a creation of the mind
nānā
a large variety
ātmakatvāt
due to having the nature of
viphalaḥ
bereft of the real perfection
tathā
in that way
bheda-ātma
in that which is separately constituted
dhīḥ
intelligence
guṇaiḥ
by the material senses

One who is sleeping may see many objects of sense gratification in a dream, but such pleasurable things are merely creations of the mind and are thus ultimately useless. Similarly, the living entity who is asleep to his spiritual identity also sees many sense objects, but these innumerable objects of temporary gratification are creations of the Lord’s illusory potency and have no permanent existence. One who meditates upon them, impelled by the senses, uselessly engages his intelligence.