विष्णुना क्रियते शक्रो विष्णुर्गच्छति जन्तुताम् ।सुखदुःखदशामेतां जरामरणपालिताम्
In plain words
By Viṣṇu is Śakra made; and Viṣṇu himself goes to the condition of a creature -- to this very state of pleasure and pain, held in the keeping of old age and death.