They, at the final dissolution of the universe, will themselves cease to exist, leaving behind the three worlds and all will be created again and again.
ते च क्षयान्ते जगतो हित्वा लोकत्रयं सदा। क्षयं गच्छन्ति वै सरेवे सृज्यन्ते च पुनः पुनः॥