वासांसि जीर्णानि यथा विहाय नवानि गृह्णाति नरोऽपराणि। तथा शरीराणि विहाय जीर्णा न्यन्यानि संयाति नवानि देही ॥

vāsānsi jīrṇāni yathā vihāya navāni gṛihṇāti naro ’parāṇi tathā śharīrāṇi vihāya jīrṇānya nyāni sanyāti navāni dehī

As a man, casting off worn-out garments, taketh new ones, so the dweller in the body, casting off worn-out bodies, entereth into others that are new.

In plain words: A person throws away worn-out clothes and puts on new ones. In the same way, the soul leaves worn-out bodies and enters new ones.