Days and nights are continually running, carrying away in their current the periods of life of all human beings. Like currents of rivers, these flow ceaselessly without ever returning.
स्रवन्ति न निवर्तन्ते स्रोतांसि सरितामिव। आयुरादाय मर्त्यानां राज्यहानि पुनः पुनः॥