The fortunes of all creatures, including beasts and birds, are fickle. The extent of life of all mobile and immobile creatures is fixed beforehand.
अनित्यानीह भाग्यानि चतुष्पात्यक्षिणामपि। जङ्गमानां नगानां वाप्यायुरग्रेऽवतिष्ठते॥