SB 11.23.49
deham mano-matram imam grhitva
mamaham ity andha-dhiyo manusyah
eso ’ham anyo ’yam iti bhramena
duranta-pare tamasi bhramanti
Translation:
Persons who identify with this body, which is simply the product of the material mind, are blinded in their intelligence, thinking in terms of “I” and “mine.” Because of their illusion of “this is I, but that is someone else,” they wander in endless darkness.