The period of time during which one creation exists or owing which it ceases to exist is called a Kalpa. Living creatures exist for a thousand millions of such Kalpas, Immobile creatures also exists for an equal time. The period for which a particular creation exists is measured by many thousands of lakes, O Daitya!
स्तिष्ठन्ति जीवाः प्रचरन्ति चान्ये। प्रजाविसर्गस्य पारिमाण्यं वापीसहस्राणि बहूनि दैत्य॥