One verse

Srimad Bhagavatam 4.7.53

4.7.53

यथा पुमान्न स्वाङ्गेषु शिर:पाण्यादिषु क्‍वचित् । पारक्यबुद्धिं कुरुते एवं भूतेषु मत्पर: ॥ ५३ ॥

yatha puman na svangesu sirah-pany-adisu kvacit parakya-buddhim kurute evam bhutesu mat-parah

yatha
as
puman
a person
na
not
sva-angesu
in his own body
sirah-pani-adisu
between the head and the hands and other parts of the body
kvacit
sometimes
parakya-buddhim
differentiation
kurute
make
evam
thus
bhutesu
among living entities
mat-parah
My devotee.

A person with average intelligence does not think the head and other parts of the body to be separate. Similarly, My devotee does not differentiate Visnu, the all-pervading Personality of Godhead, from any thing or any living entity.