One verse

Srimad Bhagavatam 10.4.20

10.4.20

यथानेवंविदो भेदो यत आत्मविपर्यय: । देहयोगवियोगौ च संसृतिर्न निवर्तते ॥ २० ॥

yathānevaṁ-vido bhedo yata ātma-viparyayaḥ deha-yoga-viyogau ca saṁsṛtir na nivartate

yathā
as
an-evam-vidaḥ
of a person who has no knowledge (about ātma-tattva and the steadiness of the ātmā in his own identity, despite the changes of the body)
bhedaḥ
the idea of difference between body and self
yataḥ
because of which
ātma-viparyayaḥ
the foolish understanding that one is the body
deha-yoga-viyogau ca
and this causes connections and separations among different bodies
saṁsṛtiḥ
the continuation of conditioned life
na
not
nivartate
does stop

One who does not understand the constitutional position of the body and the soul [ātmā] becomes too attached to the bodily concept of life. Consequently, because of attachment to the body and its by-products, he feels affected by union with and separation from his family, society and nation. As long as this continues, one continues his material life. [Otherwise, one is liberated.]