Verse 51

पुनः सृष्टिकराऽवीतवीतस्नेहदृशः पुनः ।दीपा इव कृतालोकाः प्रशाम्यन्त्युद्भवन्ति च

In plain words

Again the makers of creation, their sneha and their seeing now unspent, now spent — like lamps that have shed their light, they are quenched, and arise again.