Canto 6 Chapter 16 Text 6

yathā vastūni paṇyāni
hemādīni tatas tataḥ
paryaṭanti nareṣv evaṁ
jīvo yoniṣu kartṛṣu

TRANSLATION
Just as gold and other commodities are continually transferred from one place to another in due course of purchase and sale, so the living entity, as a result of his fruitive activities, wanders throughout the entire universe, being injected into various bodies in different species of life by one kind of father after another.