Bhagavatapurana 11.23.49

11.23.49

dehaṃ mano-mātram imaṃ gṛhītvā mamāham ity andha-dhiyo manuṣyāḥ /
eṣo 'ham anyo 'yam iti bhrameṇa duranta-pāre tamasi bhramanti //

50. Having mistaken this body, a mere creation of the mind, to be their own and their selves, men have their sense blinded with

the wrong notions of ‘I’, ‘Thou’, and ‘He’, and thus wander about in the infinite expanse of darkness.