Shloka 423
अव्यक्त-गुण-पुरुषविवेकः | Avyakta, Guṇas, and Discrimination of Puruṣa
तेन देवमनुष्येषु निरये चोपपद्यते । इसी तरह बारी-बारीसे वह जीव मानव-योनिसे नरकमें (और नरकसे मानवयोनिमें) आता-जाता रहता है। आत्मासे भिन्न तथा आत्माके गुण चैतन्य आदिसे युक्त जो इन्द्रियोंका समुदाय शरीरमें ऐसी भावना रखता है कि “यह मैं हूँ” वही देवलोक
tena deva-manuṣyeṣu niraye copapadyate |
婆悉吒说道：由于那种（错认），具身之众生或生于天界与人间，亦复堕入地狱。于是它一次又一次地漂流——由人身入地狱，又由地狱返人身——因为它把寄居于身中的诸根之聚、与真我（我，Ātman）相别者，误认作“我”。
वसिष्ठ उवाच
Educational Q&A
Misidentifying the Self with the body and senses (the ‘I am this’ notion) becomes the cause of repeated transmigration, leading to births in higher and lower realms—including heaven, human life, and hell.
Vasiṣṭha is explaining the mechanism of saṃsāra: due to egoic identification with the sensory aggregate in the body, the jīva repeatedly attains different states of existence, cycling through various realms.